| Project/Area Number |
25610083
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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 |
Condensed matter physics II
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| Research Institution | Hokkaido University |
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Principal Investigator |
Nomura Kazushige 北海道大学, 理学(系)研究科(研究院), 特任教授 (80128579)
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| Co-Investigator(Kenkyū-buntansha) |
NOBUKANE Hiroyoshi 北海道大学, 大学院理学研究院, 助教 (60550663)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | STM分光 / 有機超伝導体 / FIB加工 / 超伝導ギャップ / 異方的超伝導 / 有機超伝導 |
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| Outline of Final Research Achievements |
In order to determine the symmetry of superconducting gap in the system of the organic superconductors without the cleavage, we developed the method to carry out the angle-resolved STM spectroscopy measurement obtaining the specified crystal surface of single crystal with the FIB processing. We found from the STM observation that the processed surface for the angle-resolved STM spectroscopy should have the surface index with small integers, and established the coverage of this method. In addition, we found that the node direction of the d-wave superconductivity changes with the increase of electron correlation in the organic superconductor system, and obtained the new knowledge for the mechanism of superconductivity.
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