2016 Fiscal Year Final Research Report
Nanoscale nuclear spin resonance imaging in a quantum Hall system
| Project/Area Number |
26390006
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Nanostructural physics
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
TOMIMATSU Toru 東北大学, 大学院理学研究科, 助教 (60712396)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 走査プローブ顕微鏡 / 量子ホール効果 / 量子ホール効果ブレークダウン / 核スピン共鳴 / 電子スピン |
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| Outline of Final Research Achievements |
We established a scanning nuclear-spin resonance method suitable for semiconductor quantum systems. To achieve this goal, we combined electrical-resistive detection and local nuclear resonance utilizing scanning probe. This technique allows us local detection of both nuclear resonance intensity and Knight shift proportional to the electron spin polarization in the quantum channel of the semiconductor system. To show powerful feature of our new technique, we use quantum Hall breakdown as a model system. We have succeeded to observe local nuclear polarization and electron spin polarization. Our technique open up new avenues for nano magnetic resonance imaging of various quantum devices.
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| Free Research Field |
ナノスケール量子伝導物性
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