Spin detection and control of spin relaxation process in InAs quantum dots
| Project/Area Number |
15K17681
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Condensed matter physics I
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| Research Institution | Osaka University |
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Principal Investigator |
Kiyama Haruki 大阪大学, 産業科学研究所, 助教 (80749515)
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
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| Keywords | 量子ドット / 電荷検出 / スピン検出 / 自己形成量子ドット |
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| Outline of Final Research Achievements |
We worked on the detection of electron charge and spin in InAs self-assembled quantum dots. We used a quantum dot as a charge sensor to detect single-electron charging events in another adjacent dot. In addition, we improved the sensitivity of the quantum dot to electrostatic environment by narrowing the electrodes. We also worked on SiGe self-assembled quantum dots, which may exhibit excellent hole-spin coherence. We fabricated single-hole transistor devices, and observed signatures of Kondo effect.
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Report
(3 results)
Research Products
(25 results)
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[Presentation] Single-electron charge sensing in InAs self-assembled quantum dots2016
Author(s)
Haruki Kiyama, Takashi Hirayama, Ryoki Shikishima, Sadashige Matsuo, Shoji Baba, Naomi Nagai, Kazuhiko Hirakawa, Seigo Tarucha, and Akira Oiwa
Organizer
9th International Conference on Physics and Applications of Spin-Related Phenomena in Solids
Place of Presentation
神戸コンベンションセンター
Year and Date
2016-08-08
Related Report
Int'l Joint Research
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