High-pressure studies on crystal strucure for iron-based superconductors at low temperature
| Project/Area Number |
24340088
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | Nihon University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
TOMITA Takahiro 東京大学, 物性研究所, 研究員 (20437502)
NAKANO Satoshi 独立行政法人物質, 材料研究機構・先端材料プロセルユニット, 主幹研究員 (50343869)
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| Co-Investigator(Renkei-kenkyūsha) |
HOSONO Hideo 東京工業大学, 応用セラミクス研究所, 教授 (30157028)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥20,150,000 (Direct Cost: ¥15,500,000、Indirect Cost: ¥4,650,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2013: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥13,390,000 (Direct Cost: ¥10,300,000、Indirect Cost: ¥3,090,000)
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| Keywords | 鉄系超伝導体 / 圧力効果 / 結晶構造 / 水素ドープ / 高温超伝導 / 鉄系超伝導 / 結晶構造解析 / LaOBiS2 |
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| Outline of Final Research Achievements |
We performed high-pressure studies on crystal structure for iron-based superconductors. We installed a new refrigerator at beam line BL-18C in KEK-PF, which can realize precise x-ray diffraction measurements under high pressure and at low temperature, since we could sufficiently suppress the vibration generated by refrigerator. We measured pressure dependence of Tc for 1111-type iron-based superconductors prepared by Prof. Hideo Hosono’s group. Large pressure dependences of Tc were found for these materials. We discussed these results from the structural view point.
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Report
(4 results)
Research Products
(68 results)
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[Journal Article] Pressure-Induced Enhancement of Superconductivity and Structural Transition in BiS2-Layered LaO1-xFxBiS22014
Author(s)
T. Tomita, M. Ebata, H. Soeda, H. Takahashi, H. Fujihisa, Y. Gotoh, Y. Mizuguchi, H. Izawa, O.Miura, S. Demura, K. Deguchi, Y. Takano
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Journal Title
Journal of the Physical Society of Japan
Volume: 83
Issue: 6
Pages: 063704-063704
DOI
NAID
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Collapse of CuO Double Chains and Suppression of Superconductivity in High-Pressure Phase of YBa2Cu4O82014
Author(s)
Atsuko Nakayama, Yusuke Onda, Shuhei Yamada, Hiroshi Fujihisa,Masafumi Sakata, Yuki Nakamoto, Katsuya Shimizu, Satoshi Nakano, Ayako Ohmura, Fumihiro Ishikawa, Yuh Yamada
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Journal Title
Journal of the Physical Society of Japan
Volume: 83
Issue: 9
Pages: 093601-093601
DOI
NAID
Related Report
Peer Reviewed
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[Journal Article] Simultaneous Pressure-Induced Magnetic and Valence Transitions in Type-I Clathrate Eu8Ga16Ge302013
Author(s)
Takahiro Onimaru, Satoshi Tsutsui, Masaichiro Mizumaki, Naomi Kawamura, Naoki Ishimatsu, Marcos A. Avila, Shuhei Yamamoto, Haruki Yamane, Koichiro Suekuni, Kazunori Umeo, Tetsuji Kume, Satoshi Nakano, Toshiro Takabatake
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Journal Title
J. Phys. Soc. Jpn.
Volume: 83
Pages: 13701-4
NAID
Related Report
Peer Reviewed
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[Presentation] LiNH2の高圧Ⅱ相の構造2015
Author(s)
山脇浩、 藤久裕司、後藤義人、中野智志
Organizer
物構研サイエンスフェスタ2014
Place of Presentation
つくば国際会議場
Year and Date
2015-03-17 – 2015-03-18
Related Report
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[Presentation] High- pressure studies for iron-based spin-ladder compound BaFe2S32014
Author(s)
Hiroki.Takahashi, Akira Sugimoto, Chizuru Kawashima, Hideto Soeda, Takateru Kawakami, Kenya Ohgushi2, Fei Du, Yasuyuki Hirata, Yutaka Ueda, Tatsu Sasaki, Kazuyuki Matsubayashi, Yoshiya Uwatoko
Organizer
The International Conference on "Quantum in Complex Matter"
Place of Presentation
Erice, Italy
Year and Date
2014-07-25 – 2014-07-30
Related Report
Invited
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