2013 Fiscal Year Final Research Report
Development of solid-state actuator using the arsenic bond making and breaking
| Project/Area Number |
24654106
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics II
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| Research Institution | Okayama University |
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Principal Investigator |
NOHARA Minoru 岡山大学, 自然科学研究科, 教授 (70272531)
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| Co-Investigator(Renkei-kenkyūsha) |
KUDO Kazutaka 岡山大学, 大学院自然科学研究科, 准教授 (40361175)
YOKOYA Takayoshi 岡山大学, 大学院自然科学研究科, 教授 (90311646)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | アクチュエータ / 超伝導 |
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| Research Abstract |
We developed a solid-state actuator by using a discontinuous and gigantic change in c-axis length at the lattice collapse transition of CaFe2As2. We demonstrated that lattice collapse transition occurs at 300 K by substituting Rh for Fe of CaFe2As2, indicating that the lattice collapse can be used for actuator. During the course of the research, we discovered superconductors of doped Ca-Fe-As systems, which include La and P co-doped CaFe2As2, Ca10(Ir4As8)(Fe2As2)5, and La-doped CaFeAs2.
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[Journal Article] Collapsed Tetragonal Phase Transition of Ca(Fe_<1->xRh_x)_2As_2 Studied by Photoemission Spectroscopy2013
Author(s)
K. Tsubota, T. Wakita, H. Nagao, C. Hiramatsu, T. Ishiga, M. Sunagawa, K. Ono, H. Kumigashira, M. Danura, K. Kudo, M. Nohara, Y. Muraoka, T. Yokoya
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Journal Title
J. Phys. Soc. Jpn.82
Pages: 073705 (5 pages)
DOI
Peer Reviewed
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[Journal Article] Superconductivity in Ca_<10>(Ir_4As_8)(Fe_2As_2)_5 with Square-Planar Coordination of Iridium2013
Author(s)
K. Kudo, D. Mitsuoka, M. Takasuga, Y. Sugiyama, K. Sugawara, N. Katayama, H. Sawa, H. S. Kubo, K. Takamori, M. Ichioka, T. Fujii, T. Mizokawa, and M. Nohara
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Journal Title
Scientific Reports 3
Pages: 3101 (5 pages)
DOI
Peer Reviewed
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[Journal Article] Superconductivity in Ca_<1->xLa_xFeAs_2 : A Novel 112-Type Iron Pnictide with Arsenic Zigzag Bonds2013
Author(s)
N. Katayama, K. Kudo, S. Onari, T. Mizukami, K. Sugawara, Y. Sugiyama, Y. Kitahama, K. Iba, K. Fujimura, N. Nishimoto, M. Nohara, and H. Sawa
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Journal Title
J. Phys. Soc. Jpn. 82
Pages: 123702 (4 pages)
DOI
Peer Reviewed
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