Publication List
2024 / 2023 / 2022 / 2021 / 2020 / 2019 / 2018 / 2017 / 2016 / 2015 / 2014 / 2013 / 2012 / 2011 / 2010 / 2009 / 2008 / 2007
2024
- "Isotope-dependent site occupation of hydrogen in epitaxial titanium hydride nanofilms"
T. Ozawa, Y. Sugisawa, Y. Komatsu, R. Shimizu, T. Hitosugi, D. Sekiba, K. Yamauchi, I. Hamada, K. Fukutani
Nature Commun. 15, 9558 (2024) - "Extraction of optimal synthesis conditions from scientific literature using a knowledge graph"
Shigeru Kobayashi, Norikazu Kuwashiro, Fumiaki Itoh, Dai Sakurai, Taro Hitosugi
STAM Methods, 4, 2395242 (2024). - "Physical Vapor Deposition of an Oriented Metal–Organic Framework HKUST-1 Thin Film on an Insulating Substrate"
Shunta Iwamoto, Ryo Nakayama, Seoungmin Chon, Ryota Shimizu, Taro Hitosugi
J. Mater. Chem. A, 12, 17492-17500 (2024) - "Quantitative study of oxygen evolution reaction using LiNi0.5Mn1.5O4 thin-film electrodes"
Kentaro Hatagami, Kazunori Nishio, Ryota Shimizu, Taro Hitosugi
J. Appl. Phys., 135, 235001 (2024) - "Cyclic electrochemical reactions on a Li-metal negative electrode having a low-resistance interface with a solid-state electrolyte"
Hideaki Kuwajima, Yuki Watanabe, Keita Ikezawa, Toshikazu Yasuda, Ryota Shimizu, Tomoki Masuyama, Yuri Nakayama, Taro Hitosugi
Appl. Phys. Lett., 124, 183902 (2024) - "Impact of Annealing on the Resistance of Li3PO4 Electrolyte–LiNi0.5Mn1.5O4 Electrode Interfaces"
Hideyuki Kawasoko, Susumu Shiraki, Kazunori Nishio, Asuka Oi, Ryota Shimizu, Taro Hitosugi
Appl. Phys. Lett., 124, 181601 (2024) - "Fabrication of conductive Nb-doped anatase TiO2 thin films by mist chemical vapor deposition using aqueous solutions of water-soluble Ti and Nb compounds"
Rento Naito, Megumi Ariga, Kaede Makiuchi, Ayaka Nakamura, Tomohito Sudare, Ryo Nakayama, Ryota Shimizu, Kentaro Kaneko, Yasushi Sato, Taro Hitosugi, Yamada Naoomi
Jpn. J. Appl. Phys., 63, 045504 (2024) - "Hydrogen absorption in an epitaxial thin film of high-entropy perovskite oxide"
Takahiro Ozawa, Kaidong Wang, Kazunori Nishio, Ryota Shimizu, Taro Hitosugi, Katsuyuki Fukutani
J. Vac. Sci. Technol. A, 42, 023402 (2024) - "Observation of resonant tunneling of proton from octahedral to tetrahedral sites in Pd"
Takahiro Ozawa, Hiroshi Nakanishi, Koichi Kato, Ryota Shimizu, Taro Hitosugi, Katsuyuki Fukutani
J. Phys. Chem. Solids 185, 111741 (2024)
2023
- "Orientation Control of a Two-Dimensional Conductive Metal-Organic Framework Thin Film by a Pyridine Vapor-Assisted Dry Process"
Seoungmin Chon, Ryo Nakayama, Shunta Iwamoto, Shigeru Kobayashi, Ryota Shimizu, Taro Hitosugi
ACS Appl. Mater. Interfaces, 15, 48 (2023) - "High H− conductivities along the ab-planes of La2LiHO3 epitaxial thin films"
Yuki Sasahara, Takashi Hirose, Masataka Yoshimoto, Naoki Matsui, Shigeru Kobayashi, Hiroki Ubukata, Fumitaka Takeiri, Kota Suzuki, Masaaki Hirayama, Kazunori Nishio, Ryota Shimizu, Ryoji Kanno, Genki Kobayashi, Taro Hitosugi
Cryst. Growth Des., 23, 10 (2023) - "Autonomous exploration of an unexpected electrode material for lithium batteries"
Shigeru Kobayashi, Ryota Shimizu, Yasunobu Ando, Taro Hitosugi
ACS Mater. Lett., 5, 10 (2023) - "Tuning Bayesian optimization for materials synthesis: simulating two- and three-dimensional cases"
Han Xu, Ryo Nakayama, Takefumi Kimura, Ryota Shimizu, Yasunobu Ando, Shigeru Kobayashi, Nobuaki Yasuo, Masakazu Sekijima, Taro Hitosugi
STAM Methods, 3, 2210251 (2023) - "Synthesis of polyacene by using a metal-organic framework"
Takashi Kitao, Takumi Miura, Ryo Nakayama, Yusuke Tsutsui, Yee Seng Chan, Hironobu Hayashi, Hiroko Yamada, Shu Seki, Taro Hitosugi, Takashi Uemura
Nature synthesis (2023) - "Nonequilibrium molecular dynamics for accelerated computation of ion-ion correlated conductivity beyond Nernst-Einstein limitation"
Ryoma Sasaki, Bo Gao, Taro Hitosugi & Yoshitaka Tateyama
NPJ Comput. Mater. (2023) - "Search for a space charge layer in thin film battery materials with low-energy muons"
Jun Sugiyama, Elisabetta Nocerino, Ola K. Forslund, Yasmine Sassa, Martin Månsson, Shigeru Kobayashi, Kazunori Nishio, Taro Hitosugi, Andreas Suter, Thomas Prokscha
J. Phys.: Conf. Ser., 2462, 012046 (2023) - "Protons inside the LiCoO2 electrode largely increase electrolyte-electrode interface resistance in all-solid-state Li batteries"
Shigeru Kobayashi, Kazunori Nishio, Markus Wilde, Katsuyuki Fukutani, Ryota Shimizu, Taro Hitosugi
J. Phys. Chem. C (2023) - "Efficiency of electron doping to monolayer hexagonal boron nitride by alkali metals"
Satoru Ichinokura, Adrian Hemmi, Huanyao Cun, Kiyohisa Tanaka, Ryota Shimizu, Taro Hitosugi, Thomas Greber, Toru Hirahara
Appl. Phys. Lett., 122, 071601 (2023) - "Identification of OH groups on SrTiO3(100)-(√13×√13))-R33.7o reconstructed surface by non-contact atomic force microscopy and scanning tunneling microscopy"
Daiki Katsube, Ryota Shimizu, Yoshiaki Suguimoto, Taro Hitosugi, Masayuki Abe
Appl. Phys. Lett., 122, 071602 (2023)
2022
- "Selective Epitaxial Growth of Ca2NH and CaNH Thin Films by Reactive Magnetron Sputtering under Hydrogen Partial Pressure Control"
Seoungmin Chon, Yuki Sugisawa, Shigeru Kobayashi, Kazunori Nishio, Markus Wilde, Natsuko Kishi, Daiichiro Sekiba, Katsuyuki Fukutani, Taro Hitosugi, Ryota Shimizu
J. Phys. Chem. Lett., 13, 10169 (2022) - "Fabrication and Growth Orientation Control of NaBH4 Epitaxial Thin Films Using Infrared Pulsed-Laser Deposition"
Ryo Nakayama, Yuto Kawaguchi, Ryota Shimizu, Kazunori Nishio, Hiroyuki Oguchi, Sangryun Kim, Shin-ichi Orimo, Taro Hitosugi
Cryst. Growth Des., 22, 6616 (2022) - "Modifying the Interface between the Solvated Ionic Liquid Electrolyte and Positive Electrode to Boost Lithium-Ion Battery Performance"
Jun Deng, Kazunori Nishio, Satoru Ichinokura, Yuki Watanabe, Kurei Edamura, Ryo Nakayama, Ryota Shimizu, Toru Hirahara, Taro Hitosugi
ACS Appl. Energy Mater., in press. (2022) - "Immense Reduction in Interfacial Resistance between Sulfide Electrolyte and Positive Electrode"
Kazunori Nishio, Daisuke Imazeki, Kosuke Kurushima, Yuki Takeda, Kurei Edamura, Ryo Nakayama, Ryota Shimizu, Taro Hitosugi
Press release
ACS Appl. Mater. Interfaces, 14, 34620 (2022) - "Van Hove singularity and Lifshitz transition in thickness-controlled Li-intercalated graphene"
S. Ichinokura, M. Toyoda, M. Hashizume, K. Horii, S. Kusaka, S. Ideta, K. Tanaka, R. Shimizu, T. Hitosugi, S. Saito, and T. Hirahara
Phys. Rev. B, 105, 235307 (2022) - "Tuning of Bayesian optimization for materials synthsis: simulation of the one-dimensional case"
Ryo Nakayama, Ryota Shimizu, Taishi Haga, Takefumi Kimura, Yasunobu Ando, Shigeru Kobayashi, Nobuaki Yasuo, Masakazu Sekijima, Taro Hitosugi
STAM Methods, 2, 119 (2022) - "Repeatable Photoinduced Insulator-to-Metal Transition in Yttrium Oxyhydride Epitaxial Thin Films"
Yuya Komatsu, Ryota Shimizu, Ryuhei Sato, Markus Wilde, Kazunori Nishio, Takayoshi Katase, Daiju Matsumura, Hiroyuki Saitoh, Masahiro Miyauchi, Jonah Adelman, Ryan McFadden, Derek Fujimoto, John Ticknor, Monika Stachura, Iain McKenzie, Gerald Morris, W. Macfarlane, Jun Sugiyama, Katsuyuki Fukutani, Shinji Tsuneyuki, Taro Hitosugi
Chem. Mater., 34, 3616 (2022) - "Synthesis of high-entropy layered oxide epitaxial thin films: LiCr1/6Mn1/6Fe1/6Co1/6Ni1/6Cu1/6O2"
Kaidong Wang, Kazunori Nishio, Koji Horiba, Miho Kitamura, Kurei Edamura, Daisuke Imazeki, Ryo Nakayama, Ryota Shimizu, Hiroshi Kumigashira, Taro Hitosugi
Cryst. Growth Des., 22, 1116 (2022) - "Drastic Reduction of the Solid Electrolyte–Electrode Interface Resistance via Annealing in Battery Form"
Shigeru Kobayashi, Elvis F. Arguelles, Tetsuroh Shirasawa, Shusuke Kasamatsu, Koji Shimizu, Kazunori Nishio, Yuki Watanabe, Yusuke Kubota, Ryota Shimizu, Satoshi Watanabe, Taro Hitosugi
Press release (日本語) Press release (English)
ACS Appl. Mater. Interfaces 14, 2, 2703 (2022) - "Improving ultra-fast charging performance and durability of all solid state thinf film Li-NMC battery-on-chip systems by in situ TEM lamella analysis"
Leon Romano Brandt, Kazunori Nishio, Enrico Salvati, Kevin P. Simon, Chrysanthi Papadaki, Taro Hitosugi, Alexander M. Korsunsky
Appl. Mater. Today, 26, 101282 (2022)
2021
- "Bayesian sparse modeling of extended X-ray absorption fine structure to determine interstitial oxygen positions in yttrium oxyhydride epitaxial thin film"
Hiroyuki Kumazoe, Yasuhiko Igarashi, Fabio Iesari, Ryota Shimizu, Yuya Komatsu, Taro Hitosugi, Daiju Matsumura, Hiroyuki Saitoh, Kazunori Iwamitsu, Toshihiro Okajima, Yoshiki Seno, Masato Okada, Ichiro Akai
Press release
AIP Advances, 11, 125013 (2021) - "Ionic rectification across ionic and mixed-conductor interfaces"
Kazunori Nishio, Satoru Ichinokura, Akitaka Nakanishi, Koji Shimizu, Yasutaka Kobayashi, Naoto Nakamura, Daisuke Imazeki, Ryota Shimizu, Toru Hirahara, Satoshi Watanabe, Taro Hitosugi
Nano Lett., 21, 10086 (2021). - "Epitaxial growth of EuF2 and EuO thin films based on spontaneous anion diffusion from substrates"
Xin Dai, Yuya Komatsu, Ryota Shimizu, Taro Hitosugi
Cryst. Growth Des., 21, 4468 (2021) - "Relaxation of the interface resistance between solid electrolyte and 5 V-class positive electrode"
Ryo Nakayama, Kazunori Nishio, Daisuke Imazeki, Naoto Nakamura, Ryota Shimizu, Taro Hitosugi
Nano Lett., 21, 5572 (2021) - "Single molecular adsorption of terbium(III) bis-phthalocyaninato (TbPc2) governed by two surface reconstructions of perovskite type SrVO3 epitaxial ultrathin film"
Hirofumi Oka, Keiichi Katoh, Yoshinori Okada, Daichi Oka, Taro Hitosugi, Masahiro Yamashita, Tomoteru Fukumura
Chem. Lett., 50, 1489 (2021) - "Peculiarly Fast Li-ion Conduction Mechanism in a Succinonitrile-Based Molecular Crystal Electrolyte: A Molecular Dynamics Study"
Ryoma Sasaki, Makoto Moriya, Yuki Watanabe, Kazunori Nishio, Taro Hitosugi, and Yoshitaka Tateyama
J. Mater. Chem. A, 9, 14897 (2021) - "Absence of ferromagnetism in MnBi2Te4/Bi2Te3 down to 6 K"
Takurou Fukasawa, Shotaro Kusaka, Kazuki Sumida, Mizuki Hashizume, Satoru Ichinokura, Yukiharu Takeda, Shinichiro Ideta, Kiyoharu Tanaka, Ryota Shimizu, Taro Hitosugi, and Toru Hirahara
Phys. Rev. B 103, 205405 (2021) - "Tuning the Schottky Barrier Height at the Interfaces of Metals and Mixed Conductors"
Kazunori Nishio, Tetsuroh Shirasawa, Koji Shimizu, Naoto Nakamura, Satoshi Watanabe, Ryota Shimizu, and Taro Hitosugi
ACS Appl. Mater. Interfaces, 13, 15746 (2021) - "Clean Solid-Electrolyte/Electrode Interfaces Double the Capacity of Solid-State Lithium Batteries"
Hideyuki Kawasoko, Tetsuroh Shirasawa, Kazunori Nishio, Ryota Shimizu, Susumu Shiraki, and Taro Hitosugi
Press release (English) Press release (Japanese) 日本経済新聞
ACS Appl. Mater. Interfaces, 13, 5861 (2021)
2020
- "Autonomous materials synthesis by machine learning and robotics"
Ryota Shimizu, Shigeru Kobayashi, Yuki Watanabe, Yasunobu Ando, and Taro Hitosugi
Press release (English) Press release (Japanese) 日本経済新聞
APL Mater., 8, 111110 (2020) - "High Li-Ion Conductivity in Li{N(SO2F)2}(NCCH2CH2CN)2 Molecular Crystal"
Kenjiro Tanaka, Yusuke Tago, Mitsuru Kondo, Yuki Watanabe, Kazunori Nishio, Taro Hitosugi, and Makoto Moriya
Press release 日刊工業新聞 EE Times Japan 日経産業新聞 科学新聞 DG Lab Haus
Nano Lett., 20, 8200 (2020) - "Effect of Anisotropy in Rutile TiO2 on the Performance of Solid-State Lithium Batteries"
Daisuke Imazeki, Christopher Cornelis van Gils, Kazunori Nishio, Ryota Shimizu, and Taro Hitosugi
ACS Appl. Energy Mater., 3, 8338 (2020) - "Polarity reversal of the charge carrier in tetragonal TiHx (x = 1.6-2.0) at low temperatures"
Ryota Shimizu, Yuki Sasahara, Ikutaro Hamada, Hiroyuki Oguchi, Shohei Ogura, Tetsuroh Shirasawa, Miho Kitamura, Koji Horiba, Hiroshi Kumigashira, Shin-ichi Orimo, Katsuyuki Fukutani, and Taro Hitosugi
Phys. Rev. Research, 2, 033467 (2020) - "Width-induced metal-insulator transition in SrVO3 lateral nanowires spontaneously formed on the ultrathin film"
Hirofumi Oka, Yoshinori Okada, Kenichi Kaminaga, Daichi Oka, Taro Hitosugi, and Tomoteru Fukumura
Appl. Phys. Lett., 117, 051603 (2020) - "Epitaxial Thin Film Growth of Europium Dihydride"
Yuya Komatsu, Ryota Shimizu, Markus Wilde, Shigeru Kobayashi, Yuki Sasahara, Kazunori Nishio, Kei Shigematsu, Akira Ohtomo, Katsuyuki Fukutani, and Taro Hitosugi
Cryst. Growth Des., 20, 5903 (2020) - "Impact of Surface Roughness on Recrystallization of an α-Al2O3(001) Single Crystal to α-AlO(OH) Diaspore Microcrystals"
Yuki Sasahara, Koki Kanatani, Masayuki Matsuhisa, Yuji Wada, Ryota Shimizu, Norimasa Nishiyama, and Taro Hitosugi
ACS Omega, 5, 23520 (2020) - "Diffusion of F atoms from fluoride substrates promotes the epitaxial growth of metal fluorides"
Xin Dai, Yuya Komatsu, Ryota Shimizu, and Taro Hitosugi
Selected for "Spotlights"
Appl. Phys. Express, 13, 085507 (2020) - "Impact of the Crystal Orientation of Positive Electrodes on the Interface Resistance Across a Solid Electrolyte and Electrode"
Kazunori Nishio, Naoto Nakamura, Koji Horiba, Miho Kitamura, Hiroshi Kumigashira, Ryota Shimizu, and Taro Hitosugi
ACS Appl. Energy Mater., 3, 6416 (2020) - "Interfacial superconductivity in FeSe ultrathin films on SrTiO3 probed by in situ independently driven four-point-probe measurements"
Asger K. Pedersen, Satoru Ichinokura, Tomoaki Tanaka, Ryota Shimizu, Taro Hitosugi, and Toru Hirahara
Press release
Phys. Rev. Lett., 124, 227002 (2020) - "Superconducting dome revealed by surface structure dependence in single unit cell FeSe on SrTiO3 (001)"
Tomoaki Tanaka, Kenta Akiyama, Satoru Ichinokura, Ryota Shimizu, Taro Hitosugi, and Toru Hirahara
Phys. Rev. B, 101, 205421 (2020) - "Bayesian statistics-based analysis of AC impedance spectra"
Yu Miyazaki, Ryo Nakayama, Nobuaki Yasuo, Yuki Watanabe, Ryota Shimizu, Daniel M. Packwood, Kazunori Nishio, Yasunobu Ando, Masakazu Sekijima, and Taro Hitosugi
AIP Advances, 10, 045231 (2020) - "Metal Hydrides: Epitaxial Growth and Electronic Properties"
Ryota Shimizu, Hiroyuki Oguchi, and Taro Hitosugi
Highlight
J. Phys. Soc. Jpn., 89, 051012 (2020)
- "Visible-light-driven photocatalysis via reductant-to-band charge transfer in Cr(III) nanocluster-loaded SrTiO3 system"
Aufandra Cakra Wardhana, Akira Yamaguchi, Shusaku Shoji, Min Liu, Takeshi Fujita, Taro Hitosugi, and Masahiro Miyauchi
Appl. Catal. B, 270, 118883 (2020) - "Hole Accumulation at the Grain Boundary Enhances Water Oxidation at α-Fe2O3 Electrodes under Microwave Electric Field"
Masayuki Matsuhisa, Shuntaro Tsubaki, Fuminao Kishimoto, Satoshi Fujii, Iku Hirano, Masahiro Horibe, Eiichi Suzuki, Ryota Shimizu, Taro Hitosugi, and Yuji Wada
Press release
J. Phys. Chem. C, 124, 7749 (2020) - "Ultrahigh-pressure fabrication of single-phase α-PbO2-type TiO2 epitaxial thin films"
Yuki Sasahara, Koki Kanatani, Hiroaki Asoma, Masayuki Matsuhisa, Kazunori Nishio, Ryota Shimizu, Norimasa Nishiyama, and Taro Hitosugi
AIP Advances, 10, 025125 (2020) - "Low interface resistance in solid-state lithium batteries using spinel LiNi0.5Mn1.5O4(111) epitaxial thin films"
Hideyuki Kawasoko, Tetsuroh Shirasawa, Susumu Shiraki, Toru Suzuki, Shigeru Kobayashi, Kazunori Nishio, Ryota Shimizu, and Taro Hitosugi
ACS Appl. Energy Mater., 3, 1358 (2020) - "Origin of optical transparency in a transparent superconductor LiTi2O4"
Takeo Ohsawa, Naoomi Yamada, Akichika Kumatani, Yoshitaka Takagi, Tohru Suzuki, Ryota Shimizu, Susumu Shiraki, Tsutomu Nojima, and Taro Hitosugi
ACS Appl. Electron. Mater, 2, 517 (2020) - "Low resistance at LiNi1/3Mn1/3Co1/3O2 and Li3PO4 interfaces"
Kazunori Nishio, Naoto Nakamura, Koji Horiba, Miho Kitamura, Hiroshi Kumigashira, Ryota Shimizu, and Taro Hitosugi
Appl. Phys. Lett., 116, 053901 (2020) - "Metallic Band Structure of CaF2 Thin Films Grown on Silicon(111): Possible formation of CaSi2"
Yuzuru Takahashi, Satoru Ichinokura, Ryota Shimizu, Susumu Shiraki, Taro Hitosugi, and Toru Hirahara
Appl. Surf. Sci., 509, 144687 (2020)
2019
- "Extraordinary quasi-two-dimensional magnetotransport properties of a LaAlO3/SrTiO3 heterostructure tailored with a surface TiO2 atomic sheet"
Takeo Ohsawa, Ryota Shimizu, Katsuya Iwaya, Susumu Shiraki, Tsutomu Nojima, and Taro Hitosugi
Appl. Phys. Lett., 115, 201601 (2019) - "Low energy consumption three-valued memory device inspired by solid-state batteries"
Yuki Watanabe, Shigeru Kobayashi, Issei Sugiyama, Kazunori Nishio, Wei Liu, Satoshi Watanabe, Ryota Shimizu, and Taro Hitosugi
Press release 日刊工業新聞 日経産業新聞 EE Times Japan 化学工業日報
ACS Appl. Mater. Interfaces, 11, 45150 (2019) - "Epitaxial growth of single-phase magnesium dihydride thin films"
Ryota Shimizu, Takuya Kakinokizono, Igseon Gu, and Taro Hitosugi
Inorg. Chem., 58, 15354 (2019) - "Epitaxial Film Growth of LiBH4 via Molecular Unit Evaporation"
Hiroyuki Oguchi, Sangryun Kim, Shingo Maruyama, Yuhei Horisawa, Shigeyuki Takagi, Toyoto Sato, Ryota Shimizu, Yuji Matsumoto, Taro Hitosugi, and Shin-ichi Orimo
ACS Appl. Electron. Mater., 1, 1792 (2019) - "Bottom-current-collector-free thin film batteries using LiNi0.8Co0.2O2 epitaxial thin films"
Kazunori Nishio, Koji Horiba, Naoto Nakamura, Miho Kitamura, Hiroshi Kumigashira, Ryota Shimizu, and Taro Hitosugi
J. Power Sources, 416, 56 (2019) - "A hysteresis loop in electrical resistance of NbHx observed above the β-λ transition temperature"
Yuki Sasahara, Ryota Shimizu, Hiroyuki Oguchi, Kazunori Nishio, Shohei Ogura, Hitoshi Morioka, Shin-ichi Orimo, Katsuyuki Fukutani, and Taro Hitosugi.
Highlight
AIP Advances, 9, 015027 (2019)
Hydrogenomics News Letter
2018
- "Atomically Well-Ordered Structure at Solid Electrolyte and Electrode Interface Reduces the Interfacial Resistance"
Shiraki Susumu, Shirasawa Tetsuroh, Suzuki Tohru, Kawasoko Hideyuki, Shimizu Ryota, and Hitosugi Taro
Press release (Japanese)
ACS Appl. Mater. Interfaces, 10, 41732 (2018)
Press release (English) - "Two distinct surface terminations of SrVO3(001) ultrathin films as an influential factor on metallicity"
H. Oka, Y. Okada, T. Hitosugi, and T. Fukumura
Appl. Phys. Lett. 113, 171601 (2018) - "Impact of a surface TiO2 atomic sheet on the electronic transport properties of LaAlO3/SrTiO3 heterointerfaces"
T. Ohsawa, M. Saito, R. Shimizu, K. Iwaya, S. Shiraki, Y. Ikuhara, and T. Hitosugi
Appl. Phys. Lett. 113, 141602 (2018) - "Pulsed laser deposition of oxide thin films by the fifth harmonic of a Nd:Y3Al5O12(Nd:YAG) laser"
Ryota Shimizu, Issei Sugiyama, Naoto Nakamura, Shigeru Kobayashi, and Taro Hitosugi
AIP Advances, 8, 095101 (2018) - "Extremely low resistance of Li3PO4 electrolyte/Li(Ni0.5Mn1.5)O4 electrode interfaces"
Hideyuki Kawasoko, Susumu Shiraki, Toru Suzuki, Ryota Shimizu, and Taro Hitosugi
ACS Appl. Mater. Interfaces, 10, 32, 27498 (2018)
Press release (English)
Press release (Japanese)
日経産業新聞
化学工業日報 - "Material informatics for self-assembly of functionalized organic precursors on metal surfaces"
Daniel M. Packwood and Taro Hitosugi
Press release
Nat. Commun., 9, 2469 (2018) - "Anisotropic band splitting in monolayer NbSe2 : implications for superconductivity and charge density wave"
Yuki Nakata, Katsuaki Sugawara, Satoru Ichinokura, Yoshinori Okada, Taro Hitosugi, Takashi Koretsune, Keiji Ueno, Shuji Hasegawa, Takashi Takahashi, and Takafumi Sato
npj 2D Materials and Applications, 2, 12 (2018) - "TiO2/TNO homojunction introduced in a dye-sensitized solar cell with a novel TNO transparent conductive oxide film"
Masayuki Okuya, Jun Sato, Takeshi Endo, Ryo Iwaki, Shuichiro Takemura, Ryosuke Muramoto, Viola Nagygyorgy, Janos Madarasz, Shoichiro Nakao, Naoomi Yamada, Enju Sakai, Taro Hitosugi, and Tetsuya Hasegawa
J. Am. Ceram. Soc., 101, 5071 (2018) - "Atomic-scale visualization of oxide thin-film surfaces"
Katsuya Iwaya, Takeo Ohsawa, Ryota Shimizu, Yoshinori Okada, and Taro Hitosugi
Sci. Technol. Adv. Mat., 19, 282 (2018) - [Proceedings] "On the Use of 31Mg for β-Detected NMR Studies of Solids"
R. M. L. McFadden, A. Chatzichristos, M. H. Dehn, D. Fujimoto, H. Funakubo, A. Gottberg, T. Hitosugi, V. L. Karner, R. F. Kiefl, M. Kurokawa, J. Lassen, C. D. Philip Levy, R. Li, G. D. Morris, M. R. Pearson, S. Shiraki, M. Stachura, J. Sugiyama, D. M. Szunyogh, and W. A. MacFarlane
JPS Conf. Proc., 21, 011407 (2018) - [Proceedings] "LE-μ+SR Study of Superconductivity in the Thin Film Battery Material LiTi2O4"
M. Mansson, O.K. Forslund, H. Nozaki, I. Umegaki, S. Shiraki, T. Hitosugi, T. Prokscha, Z. Salman, A. Suter, Y. Sassa, and J. Sugiyama
JPS Conf. Proc., 21, 011025 (2018) - [Proceedings] "Challenge for Detecting the Interface between Electrode and Electrolyte with β-NMR"
Jun Sugiyama, Izumi Umegaki, Susumu Shiraki, Taro Hitosugi, Ryan M. L. McFadden, Dongsheng Wang, Victoria Karner, Gerald D. Morris, W. Andrew MacFarlane, and Robert F. Kiefl
JPS Conf. Proc., 21, 011021 (2018) - [Proceedings] "Li-Diffusion in Spinel Li[Ni1/2Mn3/2]O4 Powder and Film Studied with μ+SR"
Jun Sugiyama, Hiroshi Nozaki, Izumi Umegaki, Kazuhiko Mukai, Stephen P. Cottrell, Susumu Shiraki, Taro Hitosugi, Yasmine Sassa, Andreas Suter, Zaher Salman, Thomas Prokscha, and Martin Mansson
JPS Conf. Proc., 21, 011015 (2018)
2017
- "Rapid prediction of molecule arrangements on metal surfaces via Bayesian optimization"
Daniel M. Packwood and Taro Hitosugi
Appl. Phys. Express, 10, 6 (2017) - "Lithium diffusion in spinel Li4Ti5O12 and LiTi2O4 films detected with 8Li β-NMR"
Jun Sugiyama, Izumi Umegaki, Takeshi Uyama, Ryan M. L. McFadden, Susumu Shiraki, Taro Hitosugi, Zaher Salman, Hassan Saadaoui, Gerald D. Morris, W. Andrew MacFarlane, and Robert F. Kiefl
Phys. Rev. B, 96, 094402 (2017) - "A new electrode design for ambipolar injection in organic semiconductors"
Thangavel Kanagasekaran, Hidekazu Shimotani, Ryota Shimizu, Taro Hitosugi, and Katsumi Tanigaki
Press release 日刊工業新聞 日経産業新聞 化学工業日報
Nat. Commun., 8, 999 (2017) - "Fabrication of atomically abrupt interfaces of single-phase TiH2 and Al2O3"
Ryota Shimizu, Yuki Sasahara, Hiroyuki Oguchi, Kuniko Yamamoto, Issei Sugiyama, Susumu Shiraki, Shin-ichi Orimo, and Taro Hitosugi
APL Mater., 5, 086102 (2017) - "Quasiparticle interference on cubic perovskite oxide surfaces"
Yoshinori Okada, Shiue-Yuan Shiau, Tay-Rong Chang, Guoqing Chang, Masaki Kobayashi, Ryota Shimizu, Horng-Tay Jeng, Susumu Shiraki, Hiroshi. Kumigashira, Arun Bansil, Hsin Lin, and Taro Hitosugi
Phys. Rev. Lett., 119, 086801 (2017) - "Scanning tunneling spectroscopy of superconductivity on surfaces of LiTi2O4(111) thin films"
Yoshinori Okada, Yasunobu Ando, Ryota Shimizu, Emi Minamitani, Susumu Shiraki, Satoshi Watanabe, and Taro Hitosugi
Press release (English) Press release (Japanese) 日経産業新聞 日刊工業新聞
Nat. Commun., 8, 15975 (2017) - "A Nonvolatile Memory Device with Very Low Power Consumption Based on the Switching of a Standard Electrode Potential"
Issei Sugiyama, Ryota Shimizu, Tohru Suzuki, Kuniko Yamamoto, Hideyuki Kawasoko, Susumu Shiraki, and Taro Hitosugi
Selected for "Editor's Picks" 日経産業新聞
APL Mater., 5, 046105 (2017) - "Chemical and Entropic Control on the Molecular Self-Assembly Process"
Daniel M. Packwood, Patrick Han, and Taro Hitosugi
Press release (English) Press release (Japanese) 化学 72, 29 (2017)
Nat. Commun., 8, 14463 (2017) - "Self-assembly of very-low height/width aspect-ratio Li3Ni2NbO6 disks embedded in Li3NbO4 epitaxial films"
Hideyuki Kawasoko, Ryota Shimizu, Yoshitaka Takagi, Kuniko Yamamoto, Issei Sugiyama, Susumu Shiraki, and Taro Hitosugi
Thin Solid Films, 621, 202 (2017)
2016
- "Transparent conducting properties of Re-doped β-MoO3 films"
Kuniko Yamamoto, Ryota Shimizu, Susumu Shiraki, and Taro Hitosugi
APL Mater., 4, 096104 (2016) - "Monolayer 1T-NbSe2 as a Mott insulator"
Y. Nakata, K. Sugawara, R. Shimizu, Y. Okada, P. Han, T. Hitosugi, K. Ueno, T. Sato, and T. Takahashi
Press release 化学工業日報 科学新聞
NPG Asia Materials, 8, e321 (2016) - "Vibrational - Electrical Properties Relationship in Donor-Doped TiO2 by Raman Spectroscopy"
Piero Mazzolini, Valeria Russo, Carlo Spartaco Casari, Taro Hitosugi, Shoichiro Nakao, Tetsuya Hasegawa, and Andrea Li Bassi
J. Phys. Chem. C, 120, 18878 (2016) - "State-Space Reduction and Equivalence Class Sampling for a Molecular Self-Assembly Model"
Daniel Packwood, Patrick Han, and Taro Hitosugi
Royal Society Open Science, 3, 150681 (2016) - "Negligible Sr segregation on SrTiO3 (001) √13 x √13 rexonstructed surfaces"
Takeo Ohsawa, Ryota Shimizu, Katsuya Iwaya, Susumu Shiraki and Taro Hitosugi
Appl. Phys. Lett. 108, 161603 (2016) - "Unconventional Charge-Density-Wave Transition in Monolayer 1T-TiSe2"
Katsuaki Sugawara, Yuki Nakata, Ryota Shimizu, Patrick Han, Taro Hitosugi, Takafumi Sato, and Takashi Takahashi
ACS Nano. 10, 1341 (2016) - "Orientation control of LiCoO2 epitaxial thin films on metal substrates"
Susumu Shiraki, Yoshitaka Takagi, Ryota Shimizu, Tohru Suzuki, Masakazu Haruta, Yukio Sato, Yuichi Ikuhara, and Taro Hitosugi
Thin Solid Films 600, 175 (2016) - "Preparation and in-situ characterization of well-defined solid electrolyte/electrode interfaces in thin-film lithium batteries"
Masakazu Haruta, Susumu Shiraki, Takeo Ohsawa, Tohru Suzuki, Akichika Kumatani, Yoshitaka Takagi, Ryota Shimizu, and Taro Hitosugi
Solid State Ionics 285, 118 (2016) - [Proceedings] "Li diffusion in (110)-oriented LiCoO2 thin films grown on Au and Pt (110) substrates"
Susumu Shiraki, Hideki Oki, and Taro Hitosugi
Surface and Interface Analysis, 48, 1240 (2016)
2015
- "Self-Assembly Strategy for Fabricating Connected Graphene Nanoribbons"
Patrick Han, Kazuto Akagi, Filippo Federici Canova, Ryota Shimizu, Hiroyuki Oguchi, Susumu Shiraki, Paul S. Weiss, Naoki Asao, and Taro Hitosugi
Research Highlight
ACS Nano 9, 12035 (2015) - "Low-temperature deposition of meta-stable beta-MoO3(011) epitaxial thin films using step-and-terrace substrates"
Ryota Shimizu, Kuniko Yamamoto, Toru Suzuki, Takeo Ohsawa, Susumu Shiraki, and Taro Hitosugi
Thin Solid Films 595, 153 (2015) - "Pulsed laser deposition of air-sensitive hydride epitaxial thin films: LiH"
Hiroyuki Oguchi, Shigehito Isobe, Hiroki Kuwano, Susumu Shiraki, Shin-ichi Orimo, and Taro Hitosugi
APL Mater. 3, 096106 (2015) - "A Single-Atom-Thick TiO2 Nanomesh on an Insulating Oxide"
Takeo Ohsawa, Mitsuhiro Saito, Ikutaro Hamada, Ryota Shimizu, Katsuya Iwaya, Susumu Shiraki, Zhongchang Wang, Yuichi Ikuhara, and Taro Hitosugi
Press release 日経産業新聞
ACS Nano, 9, 8766 (2015) - "Li-ion diffusion in Li4Ti5O12 and LiTi2O4 battery materials detected by muon-spin spectroscopy"
Jun Sugiyama, Hiroshi Nozaki, Izumi Umegaki, Kazuhiko Mukai, Kazutoshi Miwa, Susumu Shiraki, Taro Hitosugi, Andreas Suter, Thomas Prokscha, Zaher Salman, James S. Lord, and Martin Mansson
Phys. Rev. B 92, 014417 (2015) - "Reply to “Comment on 'Bottom-Up Graphene-Nanoribbon Fabrication Reveals Chiral Edges and Enantioselectivity” "
Patrick Han, Kazuto Akagi, Filippo Federici Canova, Hirotaka Mutoh, Susumu Shiraki, Katsuya Iwaya, Paul S. Weiss, Naoki Asao, and Taro Hitosugi
ACS Nano, 9, 3404 (2015) - "Charge-density wave in Ca-intercalated bilayer graphene induced by commensurate lattice matching"
Ryota Shimizu, Katsuaki Sugawara, Kohei Kanetani, Katsuya Iwaya, Takafumi Sato, Takashi Takahashi, and Taro Hitosugi
Press release 日経産業新聞 マイナビニュース
Phys. Rev. Lett. 114, 146103 (2015) - "Negligible “negative space-charge layer effects” at oxide-electrolyte/electrode interfaces of thin-film batteries"
Masakazu Haruta, Susumu Shiraki, Thoru Suzuki, Akichika Kumatani, Takeo Ohsawa, Yoshitaka Takagi, Ryota Shimizu,and Taro Hitosugi
Press release JST サイエンスポータル 日経新聞 Research Highlight
Nano Lett., 15, 1498 (2015) - "Direct observation of Dirac cone in multilayer silicene intercalation compound CaSi2"
Eiichi Noguchi, Katsuaki Sugawara, Ritsuko Yaokawa, Taro Hitosugi, Hideyuki Nakano, and Takashi Takahashi
Press release 日刊工業新聞
Adv. Mater. 27, 856 (2015)
2014
- "Imaging the evolution of d-states at a strontium titanate surface"
Ikutaro Hamada, Ryota Shimizu, Takeo Ohsawa, Katsuya Iwaya, Tomihiro Hashizume, Masaru Tsukada, Kazuto Akagi, and Taro Hitosugi
Press release 日経産業新聞
J. Am. Chem. Soc., 136, 17201 (2014) - "Epitaxial Thin Film Growth of LiH using a Liquid-Li Atomic Template"
Hiroyuki Oguchi, Tamio Ikeshoji, Takeo Ohsawa, Susumu Shiraki, Hiroki Kuwano, Shin-ichi Orimo, and Taro Hitosugi
Appl. Phys. Lett. 105, 211601 (2014) - "Scanning tunneling microscopy/spectroscopy on perovskite oxide thin films deposited in situ"
Taro Hitosugi, Ryota Shimizu, Takeo Ohsawa, and Katsuya Iwaya
The Chemical Records 14, 935 (2014), (invited paper) - "Bottom-Up Graphene-Nanoribbon Fabrication Reveals Chiral Edges and Enantioselectivity"
Patrick Han, Kazuto Akagi, Filippo Federici Canova, Hirotaka Mutoh, Susumu Shiraki, Katsuya Iwaya, Paul S. Weiss, Naoki Asao, Taro Hitosugi
Press release IEEE Spectrum JST サイエンスポータル AIMR Magazine
ACS Nano 8, 9181 (2014) - "Nanoepitaxy of anatase-type TiO2 on CeO2 Nanocubes Self-Assembled on Si Substrate for Fabricating Well-Aligned Nanoscale Heterogeneous Interfaces"
Daisuke Hojo, Takanari Togashi, Takeo Ohsawa, Mitsuhiro Saito, Zhongchang Wang, Yusuke Sakuda, Shunsuke Asahina, Yuichi Ikuhara, Taro Hitosugi, Tadafumi Adschiri
Cryst. Growth Des. 14, 4714 (2014) - "Fabrication of all-solid-state battery using epitaxial LiCoO2 thin films"
Susumu Shiraki, Hideki Oki, Yoshitaka Takagi, Tohru Suzuki, Akichika Kumatani, Ryota Shimizu, Masakazu Haruta, Takeo Ohsawa, Yukio Sato, Yuichi Ikuhara, Taro Hitosugi
Journal of Power Sources 267, 881 (2014) - "Atomic-scale investigations of perovskite oxide heteroepitaxy"
Takeo Ohsawa, Ryota Shimizu, Katsuya Iwaya, Susumu Shiraki, Taro Hitosugi
Journal of The Ceramic Society of Japan 122(1426), 456 (2014) - "Visualizing Atomistic Formation Process of SrOx Thin Films on SrTiO3"
Takeo Ohsawa, Ryota Shimizu, Katsuya Iwaya, and Taro Hitosugi
Press release 日経産業新聞 日刊工業新聞
ACS Nano 8, 2223 (2014) - "Epitaxial growth of Li4Ti5O12 thin films using RF magnetron sputtering"
Akichika Kumatani, Susumu Shiraki, Yoshitaka Takagi, Tohru Suzuki, Takeo Ohsawa, Xiang Gao, Yuichi Ikuhara and Taro Hitosugi
Jpn. J. Appl. Phys. 53, 058001 (2014) - "Epitaxial growth process of La0.7Ca0.3MnO3 Thin Films on SrTiO3(001) : Thickness-Dependent Inhomogeneity Caused by Excess Ti Atoms"
Ryota Shimizu,Takeo Ohsawa, Katsuya Iwaya, Susumu Shiraki, and Taro Hitosugi
Cryst. Growth Des. 14, 1555 (2014)
2013
- "Antiphase inversion domains in lithium cobaltite thin films deposited on single-crystal sapphire substrates"
S. J. Zheng, C. A. J. Fisher, T. Hitosugi, A. Kumatani, S. Shiraki, Y. H. Ikuhara, A. Kuwabara, H. Moriwake, H. Oki, and Y. Ikuhara
Acta Materialia, 61, 7671 (2013) - "Impact of lithium-ion ordering pattern on surface electronic states of a lithium-ion-battery cathode material"
Katsuya Iwaya, Takafumi Ogawa, Taketoshi Minato, Kiyotaka Miyoshi, Jun Takeuchi, Akihide Kuwabara, Hiroki Moriwake, Yousoo Kim, and Taro Hitosugi
Press release 日本経済新聞 日経産業新聞
Phys. Rev. Lett. 111, 126104 (2013) - "Wet Etching of Amorphous TiO2 Thin Films Using H3PO4-H2O2 Aqueous Solution"
Sohei Okazaki, Takuya Ohhashi, Shoichiro Nakao, Yasushi Hirose, Taro Hitosugi, and Tetsuya Hasegawa
Jpn. J. Appl. Phys. 52, 098002 (2013) - "Effects of atomic collisions on the stoichiometry of thin films prepared by pulsed laser deposition"
Daniel M. Packwood, Susumu Shiraki, and Taro Hitosugi
Press release 日経産業新聞 日刊工業新聞 日経産業新聞 (2014.10.8)
Phys Rev. Lett. 111, 036101 (2013) - "STM Studies of Isolated Mn12-Ph Single Molecule Magnets"
K. Reaves, K. Kim, K. Iwaya, T. Hitosugi, H. G. Katzgraber, H. Zhao, K. R. Dunbar, W. Teizer
SPIN 3, 1350004 (2013) - "Capability of Insulator Study by Photoemission Electron Microscopy at SPring-8"
Takuo Ohkochi, Masato Kotsugi, Keisuke Yamada, Kenji Kawano, Koji Horiba, Fumio Kitajima, Masaki Oura, Susumu Shiraki, Taro Hitosugi, Masaharu Oshima, Teruo Ono, Toyohiko Kinoshita, Takayuki Muro and Yoshio Watanabe
J. Synchrotron Rad. 20, 620 (2013) - "First-Principles Calculations of Lithium-Ion Migration at a Coherent Grain Boundary in Cathode Material LiCoO2"
Hiroki Moriwake, Akihide Kuwabara, Craig A. J. Fisher, Rong Huang, Taro Hitosugi, Yumi H. Ikuhara, Hideki Oki and Yuichi Ikuhara
Advanced Materials 25, 618 (2013)
2012
- "Observation of momentum space semi-localization in Si-doped β-Ga2O3"
P. Richard, T. Sato, S. Souma, K. Nakayama, H. W. Liu, K. Iwaya, T. Hitosugi, H. Aida, H. Ding, T. Takahashi
Applied Physics Letters 101, 232105 (2012) - "High-Temperature Stability of Nb12O29 Transparent Conductor"
T. Ohsawa, T. Suzuki, T. Hitosugi
Thin Solid Films 526, 218 (2012) - ”Fabrication of Nb-Doped TiO2 Transparent Conducting Films by Postdeposition Annealing under Nitrogen Atmosphere"
Sohei Okazaki, Junpei Ohkubo, Shoichiro Nakao, Yasushi Hirose, Taro Hitosugi, and Tetsuya Hasegawa
Jpn. J. Appl. Phys. 51, 118003 (2012) - "Ca-intercalated bilayer graphene: thinnest limit of superconducting graphite intercalation compound C6Ca"
K. Kanetani, K. Sugawara, T. Sato, R. Shimizu, K. Iwaya, T. Hitosugi, T. Takahashi
日刊工業新聞 日経産業新聞 日経新聞 科学新聞
Proceedings of the National Academy of Sciences 109, 19610 (2012) - "Design of an effective vibration isolation system for measurements sensitive to low-frequency vibrations"
K. Iwaya, R. Shimizu, A. Teramura, S. Sasaki, T. Itagaki, T. Hitosugi
Journal of Vacuum Science and Technology A 30, 063201 (2012) - "Growth processes of lithium titanate thin films deposited by using pulsed laser deposition"
A. Kumatani, T. Ohsawa, R. Shimizu, Y. Takagi, S. Shiraki, T. Hitosugi
日刊工業新聞 日経産業新聞 科学新聞
Applied Physics Letters 101, 123103 (2012) - "Effect of oxygen deficiency on SrTiO3(001) surface reconstructions"
R. Shimizu, K. Iwaya, T. Ohsawa, S. Shiraki, T. Hasegawa, T. Hashizume, T. Hitosugi
Applied Physics Letters 100, 263106 (2012) - "A High-Coincidence Twin Boundary in Lithium Battery Material LiCoO2"
C. A. J. Fisher, R. Huang, T. Hitosugi, H. Moriwake, A. Kuwabara, Y. H. Ikuhara, H. Oki, Y. Ikuhara
Nanosci. Nanotechnol. Lett. 4, 165-168 (2012) - "Phase transitions in LiCoO2 thin films prepared by pulsed laser deposition"
Rong Huang, Taro Hitosugi, Craig A.J. Fisher, Yumi H. Ikuhara, Hiroki Moriwake, Hideki Oki, Yuichi Ikuhara
Materials Chemistry and Physics 133, 1101 (2012)
2011
- "Fabrication of transparent conductive W-doped SnO2 thin films on glass substrates using anatase TiO2 seed layers"
Shoichiro Nakao, Naoomi Yamada, Taro Hitosugi, Yasushi Hirose, Toshihiro Shimada, Tetsuya Hasegawa
phys. stat. sol. (c) 8, 543 (2011). - "Atomic-scale visualization of initial growth of homoepitaxial SrTiO3 thin film on an atomically ordered substrate"
R. Shimizu, K. Iwaya, T. Ohsawa, S. Shiraki, T. Hasegawa, T. Hashizume, T. Hitosugi
ACS Nano 5, 7967 (2011). - "Systematic analyses of vibration noise of a vibration isolation system for high-resolution scanning tunneling microscopes"
K. Iwaya, R. Shimizu, T. Hashizume, T. Hitosugi
Review of Scientific Instruments 82, 083702 (2011). - "An n-type Transparent Conducting Oxide: Nb12O29"
T. Ohsawa, J. Okubo, T. Suzuki, H. Kumigashira, M. Oshima, T. Hitosugi
Journal of Physical Chemistry C 115, 16625 (2011). - "Atomically resolved silicon donor states of β-Ga2O3"
K. Iwaya, R. Shimizu, H. Aida, T. Hashizume, T. Hitosugi
3D printer
Applied Physics Letters 98, 142116 (2011). - "Enhanced carrier transport in uniaxially (001)-oriented anatase Ti0.94Nb0.06O2 films grown on nanosheet seed layers"
Naoomi Yamada, Tatsuo Shibata, Kenji Taira, Yasushi Hirose, Shoichiro Nakao, Ngoc Lam Huong Hoang, Taro Hitosugi, Toshihiro Shimada, Takayoshi Sasaki, and Tetsuya Hasegawa
Appl. Phys. Express 4, 045801 (2011). - "Stripe charge ordering in SrO-terminated SrTiO3(001) surfaces"
Katsuya Iwaya, Ryota Shimizu, Takeo Ohsawa, Tomihiro Hashizume, Taro Hitosugi
Physical Review B 83, 125117 (2011). - "Real-time direct observation of Li in LiCoO2 cathode material"
Rong Huang, Taro Hitosugi, Scott D. Findlay, Craig A. J. Fisher, Yumi H. Ikuhara, Hiroki Moriwake, Hideki Oki, and Yuichi Ikuhara
Appl. Phys. Lett. 98, 051913 (2011). - "Wet Etching of TiO2-Based Precursor Amorphous Films for Transparent Electrodes"
Junpei Ohkubo, Yasushi Hirose, Enju Sakai, Shoichiro Nakao, Taro Hitosugi, Tetsuya Hasegawa
Jpn. J. Appl. Phys. 50, 018002 (2011). - "Simplified process to prepare atomically-ordered TiO2(110)-(1x1) surfaces with steps and terraces"
R. Shimizu, K. Iwaya, T. Ohsawa, T. Hasegawa, T. Hashizume, T. Hitosugi
Applied Surface Science 257, 4869 (2011).
2010
- "Sputter Deposition of High Mobility Sn1-xTaxO2 Films on Anatase TiO2 Coated Glass"
Naoomi Yamada, Shoichiro Nakao, Taro Hitosugi, and Tetsuya Hasegawa
Jpn. J. Appl. Phys., 49, 108002 (2010). - "Thickness-dependent local surface electronic structures of homoepitaxial SrTiO3 thin films"
T. Ohsawa, K. Iwaya, R. Shimizu, T. Hashizume, T. Hitosugi
Journal of Applied Physics 108, 073710 (2010). - "Atomically Resolved Surface Structure of SrTiO3(001) Thin Films Grown in Step-Flow Mode by Pulsed Laser Deposition"
Katsuya Iwaya, Takeo Ohsawa, Ryota Shimizu, Tomihiro Hashizume, Taro Hitosugi
Applied Physics Express 3, 075701 (2010). - "Valence evaluation of LiMnO2 and related battery materials by x-ray absorption spectroscopy"
H. Wadati, D. G. Hawthorn, T. Z. Regier, G. Chen, T. Hitosugi, T. Mizokawa, A. Tanaka, and G. A. Sawatzky
Appl. Phys. Lett. 97,022106 (2010). - "Pentacene growth on graphite investigated by low-energy electron microscope"
H. W. Liu, A. Al-Mahboob, Y. Fujikawa, N. Fukui, T. Hitosugi, T. Hashizume, Q. K. Xue, T. Sakurai
J. Cryst. Growth 312, 967-970 (2010). - "Carrier Compensation by Excess Oxygen Atoms in Anatase Ti0.94Nb0.06O2+δ Epitaxial Thin Films"
Hiroyuki Nogawa, Taro Hitosugi, Akira Chikamatsu, Shoichiro Nakao, Yasushi Hirose, Toshihiro Shimada, Hiroshi Kumigashira, Masaharu Oshima, and Tetsuya Hasegawa
Jpn. J. Appl. Phys. 49, 041102 (2010). - "High mobility exceeding 80 cm2V-1s-1 in polycrystalline Ta-doped SnO2 thin films fabricated on glass using anatase TiO2 seed layers"
S. Nakao, N. Yamada, T. Hitosugi, Y. Hirose, T. Shimada, T. Hasegawa
Appl. Phys. Express 3, 031102 (2010). - "Preparation of Superconducting Niobium Tips for Atomic ResolutionScanning Tunneling Microscopy/Spectroscopy"
Ryota Shimizu, Taro Hitosugi, Tomihiro Hashizume, Noritaka Fukuo, Tetsuya Hasegawa
Japanese Journal of Applied Physics 49, 028004 (2010). - "Transport properties and electronic states of anatase Ti1-xWxO2 epitaxial thin films"
Utahito Takeuchi, Akira Chikamatsu, Taro Hitosugi, Hiroshi Kumigashira, Masaharu Oshima, Yasushi Hirose, Toshihiro Shimada, and Tetsuya Hasegawa
J. Appl. Phys. 107, 023705 (2010). - "Fabrication of highly conductive Ta-doped SnO2 polycrystalline films on glass using seed-layer technique by pulsed laser deposition"
Shoichiro Nakao, Naoomi Yamada, Taro Hitosugi, Yasushi Hirose, Toshihiro Shimada, and Tetsuya Hasegawa
Thin Solid Films 318, 3093-3096 (2010). - "Transparent conducting Nb-doped anatase TiO2 (TNO) thin films sputtered from various oxide targets"
Naoomi Yamada, Taro Hitosugi, Junpei Kasai, Ngoc Lam Huong Hoang, Shoichiro Nakao, Yasushi Hirose, Toshihiro Shimada, and Tetsuya Hasegawa
Thin Solid Films 518, 3101-3104 (2010). - "Properties of TiO2-based transparent conducting oxide thin films on GaN(0001) surfaces"
J. Kasai, T. Hitosugi, M. Moriyama, K. Goshonoo, N. L. H. Hoang, S. Nakao, N. Yamada, T. Hasegawa
Thin Solid Films 518, 3101-3104 (2010). - "Properties of TiO2-based transparent conducting oxides"
Taro Hitosugi, Naoomi Yamada, Shoichiro Nakao, Yasushi Hirose, and Tetsuya Hasegawa
Physica Status Solidi A 207, No.7, 1529-1537 (2010).
2009
- "Preparation of Atomically Flat TiO2(110) Substrate"
Ryota Shimizu, Taro Hitosugi, Koji S. Nakayama, Toshio Sakurai, Manabu Shiraiwa, Tetsuya Hasegawa, Tomihiro Hashizume
Jpn. J. Appl. Phys. 48, 125506 (2009). - "Fabrication of EuTiO3 epitaxial thin films by pulsed laser deposition"
Kunitada Hatabayashi, Taro Hitosugi, Yasushi Hirose, Xianqiang Cheng, Toshihiro Shimada, Tetsuya Hasegawa
Jpn. J. Appl. Phys. 48, 100208 (2009). - "DFT-based First-principle Calculation of Nb-doped anatase TiO2 and its Interactions with Oxygen Vacancies and Interstitial Oxygen"
H. Kamisaka, T. Hitosugi, T. Hasegawa, T. Suenaga, and K. Yamashita
J. Chem. Phys. 131, 034702 (2009). - "Preparation of layered-rhombohedral LiCoO2 epitaxial thin films using pulsed laser deposition"
Tetsukazu Tsuruhama, Taro Hitosugi, Hideki Oki, Yasushi Hirose, Tetsuya Hasegawa
日経産業新聞
Appl. Phys. Express 2, 085502 (2009).
- "Superconductor-insulator phase transition in single-crystal La2-xSrxCuO4 films grown by the liquid-phase epitaxy method"
A. T. M. Nazmul Islam, T. Hitosugi, E. Dudzik, T. Hasegawa, S. Ueda, Y. Takano, F. N. Islam, M. K. R. Khan, M. N. Islam, A. K. M. A. Islam, S. Watauchi, and I. Tanaka
Phys. Rev. B 80, 024505 (2009). - "Direct growth of transparent conducting Nb-doped anatase TiO2 polycrystalline films on glass"
Naoomi Yamada, Taro Hitosugi, Junpei Kasai, Ngoc Lam Huong Hoang, Shoichiro Nakao, Yasushi Hirose, Toshihiro Shimada and Tetsuya Hasegawa
J. Appl. Phys. 105, 123702 (2009). - "Large electron mass anisotropy in a d-electron-based transparent conducting oxide: Nb-doped anatase TiO2 epitaxial films"
Y. Hirose, N. Yamada, S. Nakao, T. Hitosugi, T. Shimada, T. Hasegawa
Phys. Rev. B 79, 165108 (2009). - "Fabrication of TiO2-based transparent conducting oxide on glass and polyimide substrates"
T. Hitosugi, N. Yamada, N. L. H. Hoang, J. Kasai, S. Nakao, T. Shimada, T. Hasegawa
Thin Solid Films 517, 3106-3109 (2009).
2008
- "Electronic band structure of transparent conductor: Nb-doped anatase TiO2"
T. Hitosugi, H. Kamisaka, K. Yamashita, H. Nogawa, Y. Furubayashi, S. Nakao, N. Yamada, N. Chikamatsu, H. Kumigashira, M. Oshima, Y. Hirose, T. Shimada, and T. Hasegawa
Appl. Phys. Express 1, 115001 (2008). - "Low-temperature Fabrication of Transparent Conducting Anatase Nb-doped TiO2 Films by Sputtering"
N. L. H. Hoang, N. Yamada, T. Hitosugi, J. Kasai, S. Nakao, T. Shimada, and T. Hasegawa
Jpn. J. Appl. Phys. 47, 1184-1187 (2008). - "Magnetotransport properties of Fe/pentacene/Co:TiO2 junctions with Fe top contact electrodes prepared by thermal evaporation and pulsed laser deposition"
T. Shimada, H. Nogawa, T. Noguchi , Y. Furubayashi, Y. Yamamoto, Y. Hirose,T. Hitosugi, T. Hasegawa
Jpn. J. Appl. Phys. 47, 1184-1187 (2008). - "One unit-cell seed layer induced epitaxial growth of heavily nitrogen doped anatase TiO2 films"
T. L. Chen, Y. Hirose, T. Hitosugi, T. Hasegawa
J. Phys. D-Appl. Phys. 41, 062005 (2008). - "Ferromagnetic rutile CoxTi1?xO2?δ heteroepitaxy on wurtzite GaN and ZnO"
Yasushi Hirose, Taro Hitosugi, Junpei Kasai, Yutaka Furubayashi, Kiyomi Nakajima, Toyohiro Chikyow, Seiji Konuma, Toshihiro Shimada, and Tetsuya Hasegawa
phys. stat. sol. (c) 5, No. 9, 3104?3106 (2008). - "Structural study of TiO2-based transparent conducting films"
T. Hitosugi, N. Yamada, S. Nakao, K. Hatabayashi, T. Shimada, and T. Hasegawa
J. Vac. Sci. Technol. A. 26, 1027-1029 (2008). - "Formation Mechanism of One-Dimensional Si Islands on a H/Si(001) Surface"
J. Nara, H. Kajiyama, T. Hashizume, Y. Suwa, S. Heike, S. Matsuura, T. Hitosugi, and T. Ohno
Phys. Rev. Lett. 100, 026102 (2008). - "Heteroepitaxial Growth of Ferromagnetic Rutile CoxTi1-xO2?δ on GaN (0001)"
Y. Hirose, T. Hitosugi, J. Kasai, Y. Furubayashi, K. Nakajima, T. Chikyow, S. Konuma, T. Shimada, and T. Hasegawa
Appl. Phys. Lett. 92, 042503 (2008). - "Transparent conducting properties of anatase Ti0.94Nb0.06O2 polycrystalline films on glass substrate"
T. Hitosugi, A. Ueda, S. Nakao, N. Yamada, Y. Furubayashi, Y. Hirose, S. Konuma, T. Shimada, and T. Hasegawa
Thin Solid Films 516, 5750?5753 (2008). - "Structural, electrical and optical properties of sputter-deposited Nb-doped TiO2 (TNO) polycrystalline films"
Naoomi Yamada, Taro Hitosugi, Ngoc Lam Huong Hoang, Yutaka Furubayashi, Yasushi Hirose, Seiji Konuma, Toshihiro Shimada, and Tetsuya Hasegawa
Thin Solid Films 516 , 5754?5757 (2008).
2007
- "Anatase phase stability and doping concentration dependent refractivity in codoped transparent conducting TiO2 films"
T. L. Chen, Y. Furubayashi, Y. Hirose, T. Hitosugi, T. Shimada, T. Hasegawa
J. Phys. D-Appl. Phys. 40, 5961-5964 (2007). - "Quantitative analysis of thin-film conductivity by scanning microwave microscope"
Sohei Okazaki, Noriaki Okazaki, Yasushi Hirose, Yutaka Furubayashi, Taro Hitosugi, Toshihiro Shimada, Tetsuya Hasegawa
Appl. Surf. Sci. 254, 757-759 (2007). - "Direct observation of vortex lattice in Bi2Sr2CaCu2O8+δ by low temperature STM/STS"
N. Fukuo, H. Mashima, T. Hitosugi, S. Uchida, J. Shimoyama, K. Kishio, Y. Matsumoto , T. Hasegawa
Physica C 460, 734-735 (2007). - "Fabrication of Low Resistivity Nb-doped TiO2 Transparent Conductive Polycrystalline Films on Glass by Reactive Sputtering"
N. Yamada, T. Hitosugi, N. L. H. Hoang, Y. Furubayashi, Y. Hirose, T. Shimada and T. Hasegawa
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