| Project/Area Number |
25247053
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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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 I
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
Uchihashi Takshi 国立研究開発法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, MANA研究者 (90354331)
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| Co-Investigator(Kenkyū-buntansha) |
SAKAMOTO Kazuyuki 千葉大学, 融合科学研究科, 教授 (70261542)
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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 |
¥44,460,000 (Direct Cost: ¥34,200,000、Indirect Cost: ¥10,260,000)
Fiscal Year 2015: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
Fiscal Year 2014: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
Fiscal Year 2013: ¥24,180,000 (Direct Cost: ¥18,600,000、Indirect Cost: ¥5,580,000)
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| Keywords | 超伝導 / 表面超構造 / 二次元 / 原子層 / 有機分子 / 電気伝導 / 走査トンネル顕微鏡 / 超高真空 / 超伝導材料･素子 / 表面･界面物性 / 物性実験 / 超伝導材料・素子 / 表面・界面物性 |
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| Outline of Final Research Achievements |
We have studied the superconductivity of the Si(111)-(root7xroot3)-In surface reconstruction, which consists of indium atomic layers on a silicon surface, through electron transport measurement, scanning tunneling microscopy, and angle-resolved photoelectron spectroscopy. Our results include the observation of superconducting fluctuations inherent in a two-dimensional system, the discovery of Josephson vortices at surface atomic steps, the real-space observation of a disorder-induced superconductor-metal transition, and the control of superconductivity using the charge transfer and spins originating from organic molecules. We have also found anisotropic Dirac-like electronic states of self-assembled radical organic molecules.
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