Control of a single spin in a semiconductor dot and application for a memory
| Project/Area Number |
26600008
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Nanostructural physics
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| Research Institution | University of Tsukuba |
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Principal Investigator |
KURODA Shinji 筑波大学, 数理物質系, 教授 (40221949)
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| Co-Investigator(Renkei-kenkyūsha) |
MITOME Masanori 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, 研究員 (50354410)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 量子ドット / 磁性スピン / スピントロニクス / 顕微分光 / 単一スピン / 格子歪 / メモリ |
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| Outline of Final Research Achievements |
We fabricated the system consisting of a single Cr atom embedded in a self-assembled CdTe dot and investigated the behaviors of single magnetic spin of Cr 3d electrons in the dot. As a result of micro-photoluminescence measurement, we observed that the luminescence from a single dot is split into three lines corresponding the z-component 0, ±1 of Cr 3d, indicating the effect of a large magnetic anisotropy induced by an in-plane strain. In the magneto-photoluminescence measurement with a magnetic field perpendicular to the plane, we observed complicated behaviors due to the Zeeman shift of the exciton and the anticrossing between the different quantum states.
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Report
(3 results)
Research Products
(34 results)
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[Journal Article] Depositon and characterization of amorphous alminum nitride thin films for a gate insulator2015
Author(s)
H. Oikawa, R. Akiyama, K. Kanazawa, S. Kuroda, I. Harayama, K. Nagashima, D. Sekiba, Y. Ashizawa, A. Tsukamoto, K. Nakagawa, N. Ota
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Journal Title
Thin Solid Films
Volume: 574
Pages: 110-114
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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