| Project/Area Number |
20340091
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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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 |
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Principal Investigator |
YOKOYA Takayoshi Okayama University, 大学院・自然科学研究科, 教授 (90311646)
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| Co-Investigator(Renkei-kenkyūsha) |
MURAOKA Yuji 岡山大学, 大学院・自然科学研究科, 准教授 (10323635)
WAKITA Takanori 岡山大学, 大学院・自然科学研究科, 特任助教 (10423279)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
Fiscal Year 2010: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2009: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2008: ¥12,480,000 (Direct Cost: ¥9,600,000、Indirect Cost: ¥2,880,000)
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| Keywords | 高濃度ホウ素ドープダイヤモンド超伝導体 / 半導体-金属転移 / 電子状態 / 光電子分光 / 高濃度リンドープダイヤモンド / ピセン超伝導体 / ダイヤモンド超伝導 |
|---|
| Research Abstract |
We have investigated evolution of electronic structure across semiconductor to metal transition of boron(B)-doped diamond and its related compounds by using photoemission spectroscopy. Soft x-ray angle-resolved photoemission spectroscopy has revealed valence band electronic dispersions of heavily B-doped superconductive diamond. Core level photoemission spectroscopy has showed multiple chemical sites of dopant atoms for heavily B- and phosphorous-doped diamond. For new superconductors, CaC_6 and potassium doped picene, evolution of electronic structure near the Fermi level due to intercalation and doping, respectively, have been observed directly, which provide insight into the mechanism of the superconductivity.
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