2009 Fiscal Year Final Research Report
Theoretical approach to zero-bias transport by quantum pumping and its applications
| Project/Area Number |
19560001
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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 |
Applied materials science/Crystal engineering
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| Research Institution | Hokkaido University |
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Principal Investigator |
YAKUBO Kousuke Hokkaido University, 大学院・工学研究科, 教授 (40200480)
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| Co-Investigator(Kenkyū-buntansha) |
NAKAYAMA Tsuneyoshi (財)豊田中央研究所, フェロー (80002236)
SHIMA Hiroyuki 北海道大学, 大学院・工学研究科, 助教 (40312392)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 半導体 |
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| Research Abstract |
In this project, we have clarified theoretically several properties of zero-bias currents induced by a quantum pumping mechanism by utilizing a novel transfer matrix approach developed by us. In particular, we found that non-adiabatic quantum pumping in a rather simple system can realizes large magnitudes of charge currents or pure spin currents without accompanying any charge currents.
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