Publication


Original Papers

2020

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● Effects of solute oxygen on kinetics of diffusionless isothermal transformation in beta-titanium alloys
Norihiko L. Okamoto, Shuhei Kasatani, Martin Luckabauer, Masakazu Tane, Tetsu Ichitsubo,
Scripta Materialia 188, 88-91 (2020).

● Nonthermal Dynamics of Dielectric Functions in a Resonantly Bonded Photoexcited Material,
Hiroshi Tanimura, Shinji Watanabe, Tetsu Ichitsubo,
Advanced Functional Materials (Early View) (2020).

● Search for vacancies in concentrated solid-solution alloys with fcc crystal structure,
L. Resch, M. Luckabauer, N. Helthuis, N. L. Okamoto , T. Ichitsubo, R. Enzinger, W. Sprengel, and R. Würschum,
Physical Review Materials 4, 060601(R) (2020). (Editors’ Suggestion)

● Circumventing huge volume strain in alloy anodes of lithium batteries,
Hongyi Li, Takitaro Yamaguchi, Shingo Matsumoto, Hiroaki Hoshikawa, Toshiaki Kumagai, Norihiko L. Okamoto & Tetsu Ichitsubo,
Nature Communications 11, 1584 (2020).

2019

● Gas-Induced Segregation in Pt-Rh Alloy Nanoparticles Observed by In Situ Bragg Coherent Diffraction Imaging,
T. Kawaguchi, T. F. Keller, H. Runge, L. Gelisio, C. Seitz, Y.Y. Kim, E. R. Maxey, W. Cha,  A. Ulvestad, S. O. Hruszkewycz, R. Harder, I. A. Vartanyants, A. Stierle, H. You,
Physical Review Letters, 123, 246001 (2019)

● Electrochemical phase transformation accompanied with Mg extraction and insertion in a spinel MgMn2O4 cathode material,
T.Hatakeyama, N. L. Okamoto, K. Shimokawa, H. Li, A. Nakao, Y. Uchimoto, H. Tanimura, T. Kawaguchi, T. Ichitsubo,
Physical Chemistry Chemical Physics, 21,23749-23757 (2019).

● Suppressive effect of Fe cations in Mg(Mn1-xFex)2O4 positive electrodes on oxidative electrolyte decomposition for Mg rechargeable batteries,
J. Han, S. Yagi, T. Ichitsubo,
Journal of Power Sources 435, 226822 (2019).

● Zinc-Based Spinel Cathode Materials for Magnesium Rechargeable Batteries: Toward the Reversible Spinel-Rocksalt Transition,
K. Shimokawa, T. Atsumi, M. Harada, R. E. Ward, M. Nakayama, Y. Kumagai, F. Oba, N. L. Okamoto, K. Kanamura, T. Ichitsubo,
Journal of Materials Chemistry A 7, 12225  (2019).

● Diffusionless isothermal omega transformation in titanium alloys driven by quenched-in compositional fluctuations,
M. Tane, H. Nishiyama, A. Umeda, N. L. Okamoto, K. Inoue, M. Luckabauer, Y. Nagai, T. Sekino, T. Nakano, T. Ichitsubo,
Physical Review Materials 3, 043604 (2019).

● Decreasing activation energy of fast relaxation processes in a metallic glass during aging,
Martin Luckabauer, Tomoki Hayashi, Hidemi Kato, and Tetsu Ichitsubo,
Physical Review B(R) 99, 140202(R) (2019).

● Feasible Transformation of MgCo2O4 from Spinel to Defect Rocksalt Structure under Electron Irradiation,
N. L. Okamoto, K. Shimokawa, H. Tanimura, T. Ichitsubo,
Scripta Materialia, 167, 26-30 (2019).

2018

● Fast diffusion of multivalent ions facilitated by concerted interactions in dual-ion battery systems,
H. Li, N. L. Okamoto, T. Hatakeyama, Y. Kumagai, F. Oba and T. Ichitsubo,
Advanced Energy Materials 8, 1801475 (2018).

● Strain-Induced Stabilization of Charged State in Li-Rich Layered Transition Metal Oxide for Lithium Ion Batteries,
T. Kawaguchi, M. Sakaida, M. Oishi, T. Ichitsubo, K. Fukuda, S. Toyoda and E. Matsubara,
The Journal of Physical Chemistry Part C (2018).

● Solvation-Structure Modification by Concentrating Mg(TFSA)2-MgCl2-Triglyme Ternary Electrolyte,
K. Shimokawa, H. Matsumoto, and T. Ichitsubo,
The Journal of Physical Chemistry Letters 9, 4732-4737 (2018).

● Irreversible thermodynamics of ideal plastic deformation,
K. Ogawa, T. Ichitsubo, S. Ishioka,
Cogent Physics 5, 1496613 (2018).

● Distortion of local atomic structures in amorphous Ge-Sb-Te phase change materials,
A. Hirata, T. Ichitsubo, P. F. Guan, T. Fujita, and M. W. Chen,
Physical Review Letters 120, 205502 (2018).

2017

● Constructing metal-anode rechargeable batteries utilizing concomitant intercalation of Li-Mg dual cations into Mo6S8,
H. Li, T. Ichitsubo , S. Yagi, E. Matsubara,
Journal of Materials Chemistry A 5, 3534-3540 (2017).


Book

2019

Hongyi Li, Tetsu Ichitsubo , Eiichiro Matsubara,
“CHAPTER 11. Mg–Li Dual-cation Batteries” in Magnesium Batteries: Research and Applications,
edited by Maximilian Fichtner, The Royal Society of Chemistry, SEP 2019


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以下はラボスタッフが主として東北大着任前までに行った仕事
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2018

■Crystal Structure Refinement of the Γ- and Γ1-Phase Compounds in the Fe-Zn System and Orientation Relationships among α-Fe, Γ and Γ1 Phases in the Coating Layer of Galvannealed Steel,
N. L. Okamoto , M. Inomoto, H. Takabayashi, and H. Inui
Journal of Alloys and Compounds, Vol. 732, 52-63 (2018).

2017

■Electrochemical lithium intercalation behavior of pristine and milled hexagonal boron nitride,
J. Kim, E. Yamasue,T. Ichitsubo, H. Okumura, K. N. Ishihara
Journal of The Electroanalytical Chemistry 779, 263-269 (2017).

■FCC Metal-Like Deformation Behaviour of Ir3Nb with the L12 Structure,
N. L. Okamoto , S. Takemoto, Z. M. T. Chen, M. Yamaguchi, and H. Inui
International Journal of Plasticity, Vol. 97, 145-158 (2017).

■Crystal Structure of η’-Fe3Al8; Low-Temperature Phase of η-Fe2Al5 Accompanied by an Ordered Arrangement of Al Atoms of Full Occupancy in the C-axis Chain Sites,
N. L. Okamoto ,J. Okumura, M. Higashi, and H. Inui
Acta Materialia,Vol. 129, 290-299 (2017).

2016

■Atomic Displacement in the CrMnFeCoNi High-Entropy Alloy – A Scaling Factor to Predict Solid Solution Strengthening,
N. L. Okamoto , K. Yuge, K. Tanaka, H. Inui, and E. P. George
AIP Advances, Vol. 6, Issue 12, 125008 (2016).

■Initial Atomic Motion Immediately Following Femtosecond-Laser Excitation in Phase-Change Materials,
E. Matsubara, S. Okada, T. Ichitsubo, T. Kawaguchi, A. Hirata, P. F. Guan, K. Tokuda,
K. Tanimura, T. Matsunaga, M. W. Chen, N. Yamada,
Physical Review Letters 117, 135501 (2016).

■Size Effect, Critical Resolved Shear Stress, Stacking Fault Energy, and Solid Solution Strengthening in the CrMnFeCoNi High-Entropy Alloy,
N. L. Okamoto, S. Fujimoto, Y. Kambara, M. Kawamura, Z. M. T. Chen, H. Matsunoshita,
K. Tanaka, H. Inui, and E. P. George
Scientific Reports, Vol. 6, 35863 (2016).

■Two distinct crystallization processes in supercooled liquid,
M. Tane, H. Kimizuka, T. Ichitsubo,
Journal of Chemical Physics 144, 194505 (2016).

■Formation of hot-electron ensembles quasiequilibrated in momentum space by ultrafast momentum scattering of highly excited hot electrons photoinjected into the Γ valley of GaAs,
H. Tanimura, J. Kanasaki, K. Tanimura, J. Sjakste, N. Vast, M. Calandra, and F. Mauri
Physcal Review B, 93(16), 161203 1-5.(2016).

2015

■EQCM Analysis of Redox Behavior of CuFe Prussian Blue Analog in Mg Battery Electrolytes,
S. Yagi, M. Fukuda, T. Ichitsubo, K. Nitta, M. Mizumaki, E. Matsubarab,
Journal of The Electrochemical Society 162, A2356-A2361 (2015).

■Roles of Transition Metals Interchanging with Lithium in Electrode Materials,
T. Kawaguchi, K. Fukuda, K. Tokuda, M. Sakaida, T. Ichitsubo, M. Oishi, J. Mizuki,
E. Matsubara,
Physical Chemistry Chemical Physics 17, 14064-14070 (2015).

■Crystal Structure Determination of the Γ2 Phase in the Fe-Zn-Al System by Single-Crystal Synchrotron X-ray Diffraction Combined with Scanning Transmission Electron Microscopy,
N. L. Okamoto , H. Inui, A. Yasuhara, and S. Yamaguchi,
Journal of Alloys and Compounds, Vol. 644, 287-296 (2015).

■Toward “Rocking-chair type” Mg-Li Dual-salt Battery,
T. Ichitsubo, S. Okamoto, T. Kawaguchi, Y. Kumagai, F. Oba, S. Yagi, N. Goto, T. Doi,
E. Matsubara,
Journal of Materials Chemistry A 3, 10188-10194 (2015). (Selected as Hot Papers)

■Preparation of LiCoO2 thin film consisting of nanosize particles on carbon substrate with the rugged surface via electrodeposition,
H. Tanimura,J. Kanasaki, K. Tanimura, J. Sjakste, N. Vast, M. Calandra, and F. Mauri
Solid State Ionics, 285, 106-111.(2016).

■Crystal Structure and Electrical Properties of Magnesia Co-Doped Scandia Stabilized Zirconia,
N. Sonoyama, S. G. Martin, U. Amador, N. Imanishi, M. Ikeda, N. Erfu, H. Tanimura, A. Hirano, Y. Takeda, and O. Yamamoto,
Journal of The Electrochemical Society 162(14), F1397-F1401 (2015).

■Intercalation & push-out process with spinel-to-rocksalt transition on Mg insertion into spinel oxides in magnesium batteries,
S. Okamoto, T. Ichitsubo, T. Kawaguchi, Y. Kumagai, F. Oba, S. Yagi, K. Shimokawa, N. Goto, T. Doi, E. Matsubara,
Advanced Science 2, 1500072 (2015) (DOI: 10.1002/advs.201500072).

■Structural modification by adding Li cations into Mg/Cs-TFSA molten salt facilitating Mg electrodeposition,
K. Ohara, Y. Umebayashi, T. Ichitsubo, K. Matsumoto, R. Hagiwara, H. Arai, M. Mori,
Y. Orikasa, S. Okamoto, M. Oishi, Y. Aiso, T. Nohira, Y. Uchimoto, Z. Ogumia, and E. Matsubara,
RSC Advances 5, 3063 (2015).

■Ultrafast scattering processes of hot electrons in InSb studied by time- and angle-resolved photoemission spectroscopy,
H. Tanimura, J. Kanasaki, and K. Tanimura,
Physical Review B, 91(4), 045201 1-16. (2015). (Editor’s Suggestion)

2014

■Surface-layer formation by reductive decomposition of LiPF6 at relatively high potentials on negative electrode in lithium ion batteries and its suppression,
T. Kawaguchi, K. Shimada, T. Ichitsubo, S. Yagi, E. Matsubara,
Journal of Power Sources 271, 431-436 (2014).

■Imaging Energy-, Momentum-, and Time-Resolved Distributions of Photoinjected Hot Electrons in GaAs,
J. Kanasaki, H. Tanimura, and K. Tanimura,
Physical Review Letters, 113(23), 237401 1-5. (2014).

■State-resolved ultrafast dynamics of impact ionization in InSb,
H. Tanimura, J. Kanasaki, and K. Tanimura,
Scientific Reports, 4, 6849 1-4. (2014).

■Order-Disorder Structure of the δ1k Phase in the Fe-Zn System Determined by Scanning Transmission Electron Microscopy,
N. L. Okamoto, A. Yasuhara, and H. Inui
Acta Materialia, Vol. 81, 345-357 (2014).

■Revisit to Diffraction Anomalous Fine Structure,
T. Kawaguchi, K. Fukuda, K. Tokuda, K. Shimada, T. Ichitsubo, M. Oishi, J. Mizuki,
E. Matsubara,
Journal of Synchrotron Radiation 21, 1247-1251 (2014).

■A new aspect of Chevrel compounds as positive electrodes for magnesium batteries,
T. Ichitsubo, S. Yagi, R. Nakamura, Y. Ichikawa, S. Okamoto, K. Sugimura, T. Kawaguchi,
A. Kitada, M. Oishi, T. Doi, E. Matsubara,
Journal of Materials Chemistry A 2, 14858-14866 (2014).

■Bulk-nanoporous-silicon negative electrode with extremely high cyclability for lithium-ion batteries prepared using a top-down process,
T. Wada, T. Ichitsubo, K. Yubuta, H. Segawa, H. Yoshida, H. Kato,
Nano Letters 14, 4505-4510 (2014).

■Retardation and acceleration of phase separation evaluated from observation of imbalance between structure and valence in LiFePO4/FePO4 electrode,
K. Tokuda, T. Kawaguchi, K. Fukuda, T. Ichitsubo, E. Matsubara,
APL Materials 2, 070701 (2014).

■Determination of the electron?phonon coupling constant in tungsten,
S. L. Daraszewicz, Y. Giret, H. Tanimura, D. M. Duffy, A. L. Shluger, and K. Tanimura,
Applied Physics Letters, 105(2), 023112 1-4. (2014).

■Time-Resolved Coherent Diffraction of Ultrafast Structural Dynamics in a Single Nanowire,
M. C. Newton, M. Sao, Y. Fujisawa, R. Onitsuka, T. Kawaguchi, K. Tokuda, T. Sato, T. Togashi, M. Yabashi, T. Ishikawa, T. Ichitsubo, E. Matsubara, Y. Tanaka, and Y. Nishino,
Nano Letters 14, 2413-2418 (2014).

■Structure Refinement of the δ1p Phase in the Fe-Zn System by Single-Crystal X-ray Diffraction Combined with Scanning Transmission Electron Microscopy,
N. L. Okamoto,K. Tanaka, A. Yasuhara, and H. Inui
Acta Crystallographica B, Vol. 70, Part 2, 275-282 (2014).

■Plastic Deformation of Single Crystals of Pt3Al with the L12 Structure Having a Far Al-Rich Off-Stoichiometric Composition of Pt-29at.%Al,
N. L. Okamoto,Y. Hasegawa, and H. Inui
Philosophical Magazine, Vol. 94, Issue 12, 1327-44 (2014).

■Specimen- and Grain-Size Dependence of Compression Deformation Behavior in Nanocrystalline Copper,
N. L. Okamoto, D. Kashioka, T. Hiratoh, and H. Inui
International Journal of Plasticity, Vol. 56, 173-183 (2014).

■Three-Dimensional Nanoelectrode by Metal Nanowire Nonwoven Clothes,
M. Kawamori, T. Asai, Y. Shirai, S. Yagi, M. Oishi, T. Ichitsubo, E. Matsubara,
Nano Letters 14, 1932-1937 (2014).

■Electrochemical behavior of magnesium alloys in alkali metal-TFSA ionic liquid for magnesium-battery negative electrode,
M. Oishi, T. Ichitsubo, S. Okamoto, S. Toyoda, E. Matsubara, T. Nohira, R. Hagiwara,
Journal of the Electrochemical Society 161, A943-947 (2014).

■EQCM Analysis of Redox Behavior of Prussian Blue in a Lithium Battery Electrolyte,
S. Yagi, M. Fukuda, R. Makiura, T. Ichitsubo, and E. Matsubara,
Journal of Materials Chemistry A, 2, 8041 (2014).

■Micropillar Compression Deformation of Single Crystals of the Intermetallic Compound ζ-FeZn13,
N. L. Okamoto, M. Inomoto, H. Adachi, H. Takebayashi, and H. Inui
Acta Materialia, Vol. 65, 229-239 (2014).

■A concept of dual-salt polyvalent-metal storage battery,
S. Yagi, T. Ichitsubo, Y. Shirai, S. Yanai, T. Doi, K. Murase, E. Matsubara,
Journal of Materials Chemistry A, 2, 1144-1149 (2014).

■What determines the critical size for phase separation in LiFePO4 in lithium ion batteries?
T. Ichitsubo, T. Doi, K. Tokuda, E. Matsubara, T. Kida, T. Kawaguchi, S. Yagi, S. Okada, and
J. Yamaki,
Journal of Materials Chemistry A, 1, 14532-14537 (2013).

■Micropillar Compression Deformation of Single Crystals of the Intermetallic Compound ζ-FeZn13,
N. L. Okamoto,M. Inomoto, H. Adachi, H. Takebayashi, and H. Inui,
Acta Materialia, Vol. 65, 229-239 (2014).

■Effects of Water Content on Magnesium Deposition from a Grignard Reagent-based Tetrahydrofuran Electrolyte,
S. Yagi, A. Tanaka, Y. Ichikawa, T. Ichitsubo, and E. Matsubara,
Research on Chemical Intermediates, 40, 3-9 (2014).

2013

■Compression Deformability of Γ and ζ Fe-Zn Intermetallics to Mitigate Detachment of Brittle Intermetallic Coating of Galvannealed Steels,
N. L. OkamotoD. Kashioka, M. Inomoto, H. Inui, H. Takabayashi, and S. Yamaguchi,
Scripta Materialia, Vol. 69, Issue 4, 307-310 (2013).

■Plastic deformation of single crystals of Pt3Al with the L12 structure,
N. L. OkamotoY. Hasegawa, W. Hashimoto, and H. Inui,
Philosophical Magazine, Vol. 93, Issue 1-3, 60-81 (2013).

■Elastically constrained phase-separation dynamics competing with charge process in LiFePO4/FePO4 system,
T. Ichitsubo, K. Tokuda, S. Yagi, M. Kawamori, T. Kawaguchi, T. Doi, M. Oishi, E. Matsubara,
Journal of Materials Chemistry A, 1, 2567-2577 (2013).

■Electrochemical Stability of Magnesium Battery Current Collectors in a Grignard Reagent-Based Electrolyte,
S. Yagi, A. Tanaka, Y. Ichikawa, T. Ichitsubo, E. Matsubara,
Journal of the Electrochemical Society, 160, C83-C88 (2013).

■Synthesis of Binary Magnesium-Transition Metal Oxides via Inverse Coprecipitation,
S. Yagi, Y. Ichikawa, I. Yamada, T. Doi , T. Ichitsubo, E. Matsubara,
Japanese Journal of Applied Physics, 52, 025501 (2013).

■Time-resolved Bragg coherent X-ray diffraction revealing ultrafast lattice dynamics in nano-thickness crystal layer using X-ray free electron laser,
Y. Tanaka, K. Ito, M. Newton, T. Nakatani, R. Onitsuka, I. Takahashi, T. Sato, T. Togashi, M. Yabashi, K. Shimada, K. Tokuda, T. Kawaguchi, T. Ichitsubo, E. Matsubara, and Y. Nishino,
The Journal of the Ceramic Society of Japan 121, 283-286 (2013).

■Study on Correlation between Complex Relaxation Phenomena and Elastic Heterogeneity in Metallic Glasses (in Japanese),
T. Ichitsubo,S. Yukitani,E. Matsubara,H. Kato,
Journal of the Society of Materials Science, Japan 62, 167-171 (2013).

2012

■Preparation of nanocrystalline LiMn2O4 thin film by electrodeposition method and its electrochemical performance for lithium battery,
Z. Quan, S. Ohguchi, M. Kawase, H. Tanimura, N. Sonoyama,
Journal of Power Sources, 244 375-381 (2013).

■Electrochemical Stability of Metal Electrodes for Reversible Magnesium Deposition/Dissolution in Tetrahydrofuran Dissolving Ethylmagnesium Chloride,
S. Yagi, A. Tanaka, T. Ichitsubo, and E. Matsubara,
ECS Electrochemistry Letters, 1, D11-D14 (2012).

■Influence of mechanical strain on the electrochemical lithiation of aluminum-based electrode materials,
T. Ichitsubo, S. Yagi, T. Doi, S. Yukitani, K. Hirai, E. Matsubara,
Journal of the Electrochemical Society, 159 A14-A17 (2012).


Book

■組織形成の計算機シミュレーションにおける問題点,
相分解による組織形成過程の研究最前線 -理論から実験まで-, (社)日本鉄鋼協会, 東京 (2001), pp. 107-116. (ISBN4-930980-21-6)
市坪哲, 田中克志, 小岩昌宏,

■組織形成シミュレーションにおける熱揺らぎ
21世紀の格子欠陥研究に残された課題 “The Problems of Defects Physics – Solve them and grasp the Nature!”,
西谷滋人,青木正人,武藤俊介 共編,吉岡書店 (第10章 担当). (ISBN4-8427-0310-5)
市坪哲