2015 Fiscal Year Final Research Report
Emergence of superconductivity in epitaxial films of compounds with ZrCuSiAs-type structure grown by pulsed laser deposition
| Project/Area Number |
26630305
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Keywords | 鉄系超伝導体 / パルスレーザー堆積法 / エピタキシャル成長 |
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| Outline of Final Research Achievements |
At first, I attempted to develop an effective ex-situ growth method for KFe2As2 film, which is quite difficult to grow because K with high vapor pressure is a main constituent. Through this development, I wanted to get a hint to grow films of compounds with ZrCuSiAs-type structure by in-situ pulsed laser deposition. By the developed technique, I succeeded in obtaining epitaxial films of KFe2As2.
According to this result, I explored growth method for a compound, SmFeAsO, with ZrCuSiAs-type structure by in-situ pulsed laser deposition technique. Optimizing the in-situ growth condition, I succeeded in obtaining the target material, F-doped SmFeAsO films (F is also a high vapor-pressure element.), exhibiting superconducting transition.
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| Free Research Field |
エピタキシャル薄膜成長
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