2014 Fiscal Year Final Research Report
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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| Keywords | 鉄系超伝導体 / 圧力効果 / 結晶構造 / 水素ドープ |
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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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| Free Research Field |
固体物理学
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