Rchr
J-GLOBAL ID：201301090810725559
Update date: Feb. 01, 2024
Ishimasa Tsutomu
イシマサ ツトム | Ishimasa Tsutomu
Affiliation and department：
Homepage URL (1)：
http://kaken.nii.ac.jp/d/r/10135270.ja.html
Research field (3)：
Metallic materials
, Crystal engineering
, Applied materials
Research keywords (17)：
構造解析・構造評価
, 正12角形相
, 準結晶
, 正20面体相
, 近似結晶
, 結晶成長
, Zn基合金
, 希土類合金
, 超微粒子
, A15型
, 規則度
, マイクロボイド
, Zn-Se合金
, 構造的フラストレーション
, 電子顕微鏡
, 自己相似構造
, Cu基合金
Research theme for competitive and other funds (18)：
- 2010 - 2011 Analysis of crystal potential of a single small particle using multiwave-refraction effects of high energy electron
- 2008 - 2008 Panoscopic structural properties and physical properties in quasicrystals containing rare-earth metals
- 2007 - 2008 マイクロボイドの階層的形成制御 : 準結晶の場合
- 2007 - 2007 希土類合金準結晶におけるパノスコピック構造制御とその物性研究
- 2005 - 2006 準結晶における希土類金属の自己相以的階層構造の実現とその物性研究
- 2004 - 2005 構造的フラストレーションをもつ金属間化合物を利用した原子容器の研究
- 2002 - 2004 Search of new type of stable icosahedral quasicrystals and study on their structural and physical properties
- 2001 - 2003 Simulation study on the magnetic order in the phason space in quasilttices of antiferromagnetic interactions
- 1999 - 2000 Studies on controle method of structural and physical properties of quasicrystals
- 1999 - 2000 The Phason Observation in Al-Pd-Mn Icosahedral Quasicrystals using with the temperature dependence of the lattice constants
- 1999 - 1999 Al-Pd-Mnの準結晶-準結晶相変態に伴う格子定数異常
- 1998 - 1998 Al-Pd-Mnの準結晶-準結晶相変態のX線臨界現象のその場観測
- 1997 - 1998 Experimental study on the response of phason strains of the quasicrystals
- 1997 - 1997 Al-Pd-Mnの準結晶--準結晶相転移のX線臨界散乱とその場観測
- 1996 - 1997 The Observation of Quasicrystal-Quasicrystal Phase Transition in Al-Pd-Mn Icosahedral Phase
- 1996 - 1996 準結晶の変調構造と異常な電子物性
- 1990 - 1990 電子顕微鏡像にみられる準結晶の異常コントラストの研究
- 1989 - 1989 電子顕微鏡像にみられる準結晶の異常コントラストの研究
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Papers (117)：
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K. Kamiya, T. Takeuchi, N. Kabeya, N. Wada, T. Ishimasa, A. Ochiai, K. Deguchi, K. Imura, N. K. Sato. Discovery of superconductivity in quasicrystal. Nature Communications. 2018. 9. 1
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Tsutomu Ishimasa, Marek Mihalkovič, Kazuhiko Deguchi, Noriaki K. Sato, Marc de Boissieu. Interpretation of some Yb-based valence-fluctuating crystals as approximants to a dodecagonal quasicrystal. Philosophical Magazine. 2018. 98. 22. 2018-2034
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M. Matsunami, M. Oura, K. Tamasaku, T. Ishikawa, S. Ideta, K. Tanaka, T. Takeuchi, T. Yamada, A. P. Tsai, K. Imura, et al. Direct observation of heterogeneous valence state in Yb-based quasicrystalline approximants. PHYSICAL REVIEW B. 2017. 96. 24
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N. K. Sato, S. Matsukawa, K. Nobe, K. Imura, K. Deguchi, T. Ishimasa. Quantum critical behavior in magnetic quasicrystals and approximant crystals. Journal of Physics: Conference Series. 2017. 868. 1
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Kotoba Toyonaga, Tsutomu Ishimasa. Aging effects of dodecagonal quasicrystal formed in Mn-Cr-Ni-Si alloys. 13TH INTERNATIONAL CONFERENCE ON QUASICRYSTALS (ICQ13). 2017. 809
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MISC (6)：
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石政 勉. Structure modeling of dodecagonal quasicrystal from rare-earth metal based approximants. 豊田研究報告 = Reports of Toyota Physical and Chemical Research Institute. 2018. 71. 73-79
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Tsutomu Ishimasa, Yasushi Ishii. The Eleventh International Conference on Quasicrystals. PHILOSOPHICAL MAGAZINE. 2011. 91. 19-21. 2419-2420
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石政 勉. Dodecagonal準結晶とその近似結晶:合金系の場合. 日本結晶学会誌. 2011. 53. 0. s11
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ISHIMASA Tsutomu, MAEZAWA Ryo, HASHIZUME Tarou, TAKAMA Toshihiko. Formation of Zn-Fe-Sc Single Quasicrystal. Materia Japan. 2004. 43. 12. 991-991
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神鳥 成弘, 石政 勉, 田草川 房夫, 竹本 邦子, 井上 秀世, 相原 茂夫, 杉 道夫, 市川 昌和, 友清 芳二, 山根 隆. クリスタリット. 日本結晶学会誌. 1993. 35. 5. 361-364
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Lectures and oral presentations (176)：
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Substitution effect of the Au-Al-Yb quasicrystals with Tsai cluster.
(Meeting Abstracts of the Physical Society of Japan 2017)
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Interpretation of some Yb containing valence-fluctuating materials as an approximant of a dodecagonal quasicrystal
(Meeting Abstracts of the Physical Society of Japan 2017)
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Electrical resistivity measurement of Zn-Ag-Sc quasicrystals at low temperature
(Meeting Abstracts of the Physical Society of Japan 2017)
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Magnetism of Yb-based Quasicrystals and Approximants with Tsai-type Clusters
(Meeting Abstracts of the Physical Society of Japan 2017)
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Magnetism and Quantum Critical Phenomena of Icosahedral Ce Approximant with Tsai-type Cluster
(Meeting Abstracts of the Physical Society of Japan 2016)
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Professional career (1)：
Work history (1)：
- 2000 - 2013 北海道大学 工学(系)研究科(研究院) 教授
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