2009 Fiscal Year Final Research Report
Structural study of superconductive boron under high pressure
| Project/Area Number |
19540380
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | Okayama University of Science |
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Principal Investigator |
MORI Yoshihisa Okayama University of Science, 理学部, 准教授 (00258211)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 分子性固体 / 有機導体 / 超伝導 / 高圧 |
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| Research Abstract |
The X-ray diffraction studies of α-boron and B_4C under high-pressure beyond 200 GPa were carried out by using the synchrotron radiation source at SPring-8 or Photon Factory. The data were analyzed by the Rietveld method to determine the crystal structure including the atomic position and by the DV-Xα method to determine the electronic structure under pressure. We obtained the relation between the crystal and/or electronic structure and the superconductivity. On the other hand, α-boron was sintered under pressure at high temperature by the technique of laser heated diamond anvil cell.
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