Eita Tochigi
Assistant
Professor, Institute of Engineering Innovation, The University of Tokyo
Office address: Institute
of Engineering Innovation, The University of Tokyo,
2-11-16
Yayoi, Bunkyo-ku, Tokyo, Japan 113-8656
(Room 419, Faculty
of Engineering Building No.9)
Telephone: +81-3-5841-7689
Fax: +81-3-5841-7694
E-mail: tochigi[at]sigma.t.u-tokyo.ac.jp
Education:
BEng, Department of Materials
Engineering, Hokkaido University, Japan, 2006
MEng, Department of Materials
Engineering, The University of Tokyo, Japan, 2008
PhD,
Department of Materials Engineering, The University of Tokyo, Japan, 2011
Professional
Experience:
March, 2013 – present: Assistant Professor, Institute of
Engineering Innovation, The University of Tokyo
July, 2011 – March, 2013: Postdoctoral Research Fellow (JSPS
Postdoctoral Research Fellow for Research Abroad), National Center for Electron
Microscopy, Lawrence Berkeley National Laboratory
April, 2011 – June, 2011:
Postdoctoral Research Fellow, Institute of Engineering Innovation, The
University of Tokyo
April, 2009- March, 2011: Research Fellow of the Japan Society for
the Promotion of Science (DC2)
Professional Specialty:
Materials
Science, Transmission Electron Microscopy
Professional Society:
Member of The Japan Institute of Metals
The Japanese Society of Microscopy
Current Research:
High-resolution TEM/STEM analysis of lattice defects
In-situ TEM investigation of dynamic behavior of lattice defects
International peer-reviewed
articles:
22. Haijun Yu, Yeong-Gi So, Akihide
Kuwabara, Eita Tochigi, Naoya Shibata, Tetsuichi Kudo, Haoshen Zhou,
Yuichi Ikuhara, “Crystalline grain interior configuration affects lithium migration
kinetics in Li-rich layered oxide”, Nano Letters, accepted.
21. Joshua HOEMKE, Atta Ullah KHAN, Hidehiro
YOSHIDA, Takao MORI, Eita TOCHIGI, Naoya SHIBATA, Yuichi IKUHARA, Yoshio
SAKKA, “Sintering characteristics and thermoelectric properties of Mn–Al co-doped
ZnO ceramics”, Journal of Ceramics Society of Japan, 124, 5, 515-522 (2016). DOI:
10.2109/jcersj2.15282
20. Si-Young, Choi, Sung-Dae
Kim, Minseok Choi, Hak-Sung Lee, Jungho Ryu, Naoya, Shibata, Teruyasu
Mizoguchi, Eita Tochigi, Takahisa Yamamoto, Suk-Joong Kang, Yuichi
Ikuhara, “Assessment of strain-generated oxygen vacancies using SrTiO3”, Nano
Letters, 15, 4129-4134 (2015). DOI: 10.1021/acs.nanolett.5b01245
19. Eita
Tochigi, Atsutomo Nakamura, Teruyasu Mizoguchi, Naoya Shibata, Yuichi
Ikuhara, “Dissociation of the 1/3<-1101> Dislocation and Formation of the
Anion Stacking Fault on the Basal Plane in α-Al2O3”, Acta Mater., 91, 152-161
(2015). DOI: 10.1016/j.actamat.2015.02.033
18. Shin-ichi Okuoka,
Yoshiyuki Ogasawara, Yosuke Suga, Mitsuhiro Hibino, Tetsuichi Kudo, Hironobu
Ono, Yasutaka Sumida, Koji Yonehara, Yuki Yamada, Atsuo Yamada, Masaharu
Oshima, Eita Tochigi, Naoya Shibata, Yuichi Ikuhara, and Noritaka
Mizuno, “A New Sealed Lithium-Peroxide Battery with a Co-Doped Li2O Cathode in
a Superconcentrated Lithium Bis(fluorosulfonyl)amide Electrolyte”, Scientific
Reports, 4, 5684 (2014).
17. E. Tochigi,
E. Zepeda-alarcon, H. –R. Wenk, A. M. Minor, “In situ TEM observations of
plastic deformation in quartz crystals”, Phys. Chem. Miner., 41, 757-765
(2014). DOI: 10.1007/s00269-014-0689-6
16. Mitsuhiro Hibino,
Ryuji Harimoto, Yoshiyuki Ogasawara, Ryota Kido, Akira Sugahara, Tetsuichi
Kudo, Eita Tochigi, Naoya Shibata, Yuichi Ikuhara, and Noritaka Mizuno,
“A new rechargeable sodium battery utilizing reversible topotactic oxygen
extraction/insertion of CaFeOz(2.5 ≤ z ≤ 3) in an organic electrolyte”, Journal
of the American Chemical Society, [136] 1, 448-494 (2014). DOI:
10.1021/ja411365z
15. Kenji Tsuruta, Eita
Tochigi, Yuki Kezuka, Kazuaki Tanaka, Naoya Shibata, Atsutomo Nakamura, and
Yuichi Ikuhara, “Core structure and dissociation energetics of basal edge
dislocation in α-Al2O3: A combined atomistic-simulation and
transmission-electron-microscopy analysis”. Acta Mater., [65], 76-84 (2014).
14. A. Nakamura, E.
Tochigi, J. Nakamura, I. Kishida, and Y. Yokogawa, “Dislocation structure
as a {-12-10}/<10-10> low-angle tilt grain boundary in LiNbO3”,
J. Mater. Sci., [47], 5086-5096 (2012).
13. S. Kondo, N.
Shibata, T. Mitsuma, E. Tochigi, and Y. Ikuhara, “Dynamic observations
of dislocation behavior in SrTiO3 by in situ nanoindentation in a
transmission electron microscope”, Appl. Phys. Lett., [100], 181906 (2012).
12. E. Tochigi,
Y. Kezuka, N. Shibata, A. Nakamura and Y. Ikuhara, “Structure of screw
dislocations in a (0001)/[0001] low-angle twist grain boundary of alumins (α-Al2O3)”,
Acta Mater., [60], 1293-1299 (2012).
11. T. Mizoguchi, K. Matsunaga, E.
Tochigi, and Y. Ikuhara, “First principles pseudopotential
calculation of electron energy loss near edge structure of lattice
imperfections”, Micron, [43] 37-42 (2012).
10. Y. Kezuka, E. Tochigi, N.
Shibata, and Y. Ikuhara, “TEM analysis of dislocation structures formed in the
Cr-doped grain boundary of alumina”, J. Ceram. Soc. Jpn., [119] 817-821 (2011).
9. Y. Kezuka, E. Tochigi, N.
Shibata, C. Moon, S. Kanehira, K. Hirao, and Y. Ikuhara, “Formation of a Cr3+ -
rich luminescent thin phase along a grain boundary of α-Al2O3”,
J. Ceram. Soc. Jpn., [119], 620-622 (2011).
8. E. Tochigi, N. Shibata, A.
Nakamura, T. Yamamoto and Y. Ikuhara, “Dislocation
Structures in a {-1104} / <11-20> Low-angle Tilt Grain Boundary of
Alumina (α-Al2O3)”, J. Mater. Sci., [46] 4428-4433
(2011).
7. H. Hojo, E. Tochigi, T.
Mizoguchi, H. Ohta, N. Shibata, B. Feng and Y. Ikuhara, “Atomic
Structure and strain field of threading dislocations in CeO2 thin
films on yttria-stabilized ZrO2”, Appl. Phys. Lett., [98], 153104
(2011).
6. C. Moon, S. Kanehira, K. Miura, E.
Tochigi, N. Shibata, Y. Ikuhara and K. Hirao, “Morphology change from nanocrack
to periodic pore array formed by femtosecond laser pulses”, J. Appl. Phys.,
[109], 013517 (2011).
5. Y. Nohara, E. Tochigi, N.
Shibata, T. Yamamoto and Y. Ikuhara, “Dislocation structures and strain fields
in [111] low-angle tilt grain boundaries in zirconia”, J. Electron Microsc,
[59], S117-S121 (2010).
4. E. Tochigi, N. Shibata, A.
Nakamura, T. Mizoguchi, T. Yamamoto and Y. Ikuhara, “Structures
of dissociated <1-100> dislocations and {1-100} stacking faults of
alumina (α-Al2O3)”, Acta Mater., [58], 208-215 (2010).
3. C. Moon, S. Kanehira, M. Nishi, K.
Miura, T. Nakaya, E. Tochigi, N. Shibata, Y. Ikuhara and K. Hirao, “Crack
propagation in a ruby sigle crystal by femtosecond laser irradiation”, J. Am.
Ceram. Soc., [12], 3118-3121 (2009).
2. A. Nakamura, E. Tochigi, N.
Shibata, T. Yamamoto and Y. Ikuhara, “Structure and
Configuration of Boundary Dislocations on Low Angle Tilt Grain Boundaries in
Alumina”, Mater. Trans., [50], 1008-1014 (2009).
1. E. Tochigi, N. Shibata, A.
Nakamura, T. Yamamoto and Y. Ikuhara, “Partial
dislocation configurations in a low-angle boundary in α-Al2O3”,
Acta Mater., [56], 2015-2021 (2008).
Conference proceedings:
18. Joshua Hoemke1, Atta Ullah
Khan, Hidehiro Yoshida, Takao Mori, Eita Tochigi, Naoya Shibata, Yuichi
Ikuhara, Yoshio Sakka, “Microstructural Analysis and Thermoelectric Properties
of Sn-Al co-doped ZnO Ceramics”, AIP Conference Proceedings, accepted.
17. Eita TOCHIGI, Scott
D. FINDRAY, Eiji OKUNISHI, Teruyasu MIZOGUCHI, Atsutomo NAKAMURA, Naoya
SHIBATA, Yuichi IKUHARA,” Atomic Structure Characterization of Stacking Faults
on the {1-100} plane in α-Alumina by Scanning Transmission Electron Microscopy”
AIP Conference Proceedings, accepted.
16. E. Tochigi, E. Zepeda, H.-R.
Wenk, A. M. Minor,"In Situ TEM Observation of Twinning, Detwinning and
Retwinning in Quartz", MEMS AND NANOTECHNOLOGY, 5, pp. 31-34, (2016).
(Conference Proceedings of the Society for Experimental Mechanics Series)
15. 栃木栄太, 中村篤智, 柴田直哉, 幾原雄一," TEMその場ナノインデンテーション法によるアルミナにおける機械的双晶の動的観察", M&M材料力学カンファレンス
2015, in press.
14. 栃木栄太, 中村篤智, 柴田直哉, 幾原雄一," TEMその場機械試験法によるセラミックスの微視的変形の動的観察", 日本機械学会年次大会、F221002-1-F221002-2,
2014-09-07, (2014)
13. 栃木栄太, Zepeda-alarcon Eloisa, Wenk Hans-Rudolf, Minor Andrew M.," 透過型電子顕微鏡その場圧縮試験によるα-クオーツのDAUPHINE双晶の動的観察", M&M材料力学カンファレンス
2014、OS1101-1-OS1101-2 2014-07-19
(2014).12. E. Tochigi, Y.
Kezuka, A. Nakamura, N. Shibata, Y. Ikuhara,"The Structure of Screw
Dislocations in an α-Al2O3 Bicrystal with a Low-angle Twist Grain
Boundary", AMTC Letters, 4, pp. 8-9, (2014).
11. A. Nakamura, Y. Furushima, E. Tochigi,
Y. Ikuhara, K. Toyoura, K. Matsunaga,"Boundary Dislocations at a Low Angle
Grain Boundary Including Twist Component in LiNbO3", AMTC Letters, 4, pp.
20-21, (2014).
10. S. Kondo, T. Mistuma, E. Tochigi,
N. Shibata, and Y. Ikuhara, “Real-time observations of deformation in ceramics
by in situ TEM nanoindentation”, AMTC Letters, [3], 90-91 (2012).
9. A. Nakamura, J. Nakamura,
T. Yamamoto, I. Kishida, Y. Yokogawa, and E. Tochigi, “Dislocation
structure of low angle tilt grain boundaries in LiNbO3”, AMTC
Letters [3], 40-41 (2012).
8. Y. Kezuka, E.
Tochigi, N. Shibata, C. Moon, S. Kanehira, K. Hirao, and Y. Ikuhara,
“Structural analysis of Cr-rich luminescent phase formed along an alumina grain
boundary”, AMTC Letters, [3], 10-11 (2012).
7. A. Nakamura, I.
Okawa, J. Nakamura, E. Tochigi, I. Kishida and Y. Yokogawa, “Influence
of the titanium doping on 2o tilt grain boundaries in LiNbO3”,
AMTC Letters, [2], 246-247 (2010).
6. E. Tochigi,
N. Shibata, A. Nakamura, T. Mizoguchi, T. Yamamoto and Y. Ikuhara, “HRTEM
observations of stacking fault on the {1-100} planes in sapphire (α-Al2O3)”,
AMTC Letters, [2], 220-221 (2010).
5. E. Tochigi, N. Shibata, A. Nakamura,
T. Yamamoto and Y. Ikuhara, “Dissociated dislocations in
low-angle grain boundary of alumina”, AMTC Letters, [1], 232-233 (2008).
4. Y. Nohara, E.
Tochigi, N. Shibata, T. Yamamoto and
Y. Ikuhara, “Atomic
structures of [111] low-angle tilt grain boundaries in zirconia bicrystals”,
AMTC Letters, [1], 22-23 (2008).
3. E. Tochigi, N. Shibata, A. Nakamura,
T. Yamamoto and Y. Ikuhara, “TEM characterization of 2º tilt grain boundary in alumina”, Mater.
Sci. Forum, [561-565], 2427-2430 (2007).
2. A. Nakamura, E. Tochigi, N.
Shibata, T. Yamamoto and Y. Ikuhara, “Dislocation structure analysis of
low angle tilt grain boundaries in alumina by elastic theory”, Mater. Sci.
Forum, [561-565], 2465-2468 (2007).
1. E. Tochigi,
A. Nakamura, N. Shibata, T. Yamamoto, K.P.D. Lagerlöf and Y.
Ikuhara, “Dislocation
structure of 10º low-angle tilt grain boundary in α-Al2O3”,
Mater. Sci. Forum, [527-529], 979-982 (2007).
Articles:
4. 栃木栄太、「アルミナにおける小角粒界を用いた転位設計と構造解析」、日本金属学会「まてりあ」新進気鋭、第54巻 第8号 409-412 (2015).
“Design and Analysis of Dislocations Using Low-angle Grain Boundaries of
Alumina”
3. 栃木栄太、柴田直哉、幾原雄一、「アルミナ転位の構造解析」、日本学術振興会第133委員会50周年記念誌、2013年6月発行 239頁-244頁
2. 栃木栄太、柴田直哉、中村篤智、山本剛久、幾原雄一、「アルミナ小傾角粒界に形成された特異部分転位構造のTEM解析」日本金属学会会報 「まてりあ」, 2009年12月号600頁 [“TEM
observations of characteristic partial dislocation structures in an alumina
low-angle grain boundary” JIM Mtere2, Vol.48 No.12, 600 (2009)].
(Japanese)
1. 中村篤智、栃木栄太、柴田直哉、山本剛久、幾原雄一、「ねじり成分によるアルミナ小傾角粒界の構造変化」マテリアル インテグレーション, 2009年9月号57〜64頁 [“Multiplicity
of boundary dislocations on a low-angle tilt grain boundary including twist
component in alumina” Material Integration, Vol.22 No.9, 57-64 (2009)].
(Japanese)
Awards:
7. 栃木栄太、第24回日本金属学会奨励賞「組織部門」、2014年9月24日
6. Eita Tochigi,
Yuki Kezuka, Atsutomo Nakamura, Naoya Shibata, Yuichi Ikihara, “Screw
Dislocation Network in Alumina”, Science as Art 2nd Prize (Photo Competition),
MRS Fall meeting 2012, Hynes Convention Center, Boston, USA, (Nov. 29, 2012)
5. 栃木栄太、毛塚雄己、柴田直哉、幾原雄一、中村篤智、「アルミナ小角ねじり粒界のPlan‐view観察」、日本セラミックス協会学術写真賞 最優秀賞、2012年3月20日
4. 栃木栄太、”In situ TEM nanoindentation study of {1-102}<-1101> Twin
formation in α-Al2O3”, 風戸研究奨励会 国際会議発表渡航助成、International Microscopy Congress (IMC17), M19.16, Rio de Janeiro,
Brazil (Sep. 19-24, 2010). [poster presentation]
3. E. Tochigi,
N. Shibta, A. Nakamura, T. Yamamoto and Y. Ikuhara, “Nucleation process and
interface structure of {1-102}<-1101> twin in α-Al2O3”, XIII
International conference on intergranular and interphase boundaries in
materials (iib2010), P-C13, Shima (Mie), Japan (June. 27-July. 2, 2010). Poster
Award, July. 2, 2010
2. 栃木栄太、柴田直哉、中村篤智、山本剛久、幾原雄一、「アルミナ小傾角粒界を用いた転位構造制御」、日本金属学会 第59回金属組織写真賞 奨励賞 2009年3月28日
1. 栃木栄太、「アルミナ小傾角粒界を用いた転位構造制御」、日本金属学会 第一回格子欠陥制御工学研究会 若手優秀講演賞 2008年9月27日