Theoretical research for novel physics of spin Hall effects on the system surfaces and interfaces
| Project/Area Number |
19740177
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics I
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
MURAKAMI Shuichi Tokyo Institute of Technology, 大学院・理工学研究科, 准教授 (30282685)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥2,980,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥480,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2007: ¥900,000 (Direct Cost: ¥900,000)
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| Keywords | 量子スピンホール系 / トポロジカル絶縁体 / エッジ状態 / ビスマス / 熱電変換 / 励起子 / トポロジー / スピンホール効果 / 物性理論 / 磁性 / スピンエレクトロニクス / 表面・界面物性 / 量子スピンホール効果 / 白金 |
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| Research Abstract |
We calculate thermoelectric properties of the topological insulators. For two-dimensional topological insulators, as the temperature is lowered, the edge-state transport becomes dominant over the bulk transport. We also obtain universal phase diagrams describing the phase transitions between the topological and ordinary insulators. Lastly, we calculate the spin Hall conductivity for platinum by first-principle methods, and show that the giant spin Hall effect in platinum is caused by the band crossings near the Fermi energy.
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Report
(5 results)
Research Products
(72 results)
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[Presentation] スピンホール効果2007
Author(s)
S. Murakami
Organizer
日本物理学会第62回年次大会
Place of Presentation
北海道大学、札幌
Year and Date
2007-09-24
Related Report
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[Presentation] Quantum spin Hall systems2007
Author(s)
S. Murakami
Organizer
CAS Program Spin and Charge Flow in Nano-structures
Place of Presentation
Centre for Advanced Study, Oslo, Norway
Year and Date
2007-05-08
Related Report
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