Electrical manipulation of nuclear spins in quantum Hall systems
Project/Area Number |
21340077
|
Research Category |
Grant-in-Aid for Scientific Research (B)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Condensed matter physics I
|
Research Institution | The University of Tokyo |
Principal Investigator |
MACHIDA Tomoki 東京大学, 生産技術研究所, 准教授 (00376633)
|
Project Period (FY) |
2009 – 2011
|
Project Status |
Completed (Fiscal Year 2011)
|
Budget Amount *help |
¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000)
Fiscal Year 2011: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2010: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2009: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
|
Keywords | 量子ホール効果 / 物性実験 / 半導体物性 / 低温物性 / 量子閉じ込め |
Research Abstract |
We have studied dynamic nuclear polarization induced by breakdown of the integer and fractional quantum Hall effect. By employing a pump and probe experiment, we determined the polarity of the dynamic nuclear polarization induced in the quantum Hall effect breakdown regime of various Landau level filling factors. We also demonstrated that the amplitude of dynamic nuclear polarization develops along the electron drift direction in the quantum Hall conductor.
|
Report
(4 results)
Research Products
(38 results)