Majorana particles in carbon nanotubes
Publicly Offered Research
Project Area | Science of hybrid quantum systems |
Project/Area Number |
18H04282
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Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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Allocation Type | Single-year Grants |
Research Institution | Tohoku University |
Principal Investigator |
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Project Period (FY) |
2018-04-01 – 2020-03-31
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Project Status |
Completed (Fiscal Year 2021)
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Budget Amount *help |
¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
Fiscal Year 2019: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2018: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
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Keywords | ナノチューブ / スピン / スピン軌道相互作用 |
Outline of Final Research Achievements |
The purpose of this study was to clarify theoretically the conditions of appearance of Majorana quasi-particles in the carbon nanotubes, which have not been extensively investigated for the Majorana quasi-particles. We also focused on the effects such as the electron correlations which could affects on the stability of the Majorana quasi-particles. By joint international researches, we have shown the Majorana quasi-particles appear under the superconducting correlation, and the localized spin moments on the topological states by electron correlation and the details of the interaction between the spins.
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Academic Significance and Societal Importance of the Research Achievements |
本研究により、カーボンナノチューブや半導体微細加工によるハイブリッド量子構造において、ナノチューブの結晶格子構造や電子相関に由来するトポロジカルな性質や電子スピンに関連する物性などに未知の諸現象が存在することが明らかとなった。さらには電子スピンを用いた新たな機能素子としての可能性も明らかとなった。これらの性質は、量子コンピュータやナノ機械構造など次世代電子素子としての新機能を示すことにも繋がる。これらが、本研究成果の学術的意義・社会的意義として挙げられる。
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Report
(3 results)
Research Products
(25 results)
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[Journal Article] Einstein-de Haas Nanorotor2022
Author(s)
W. Izumida, R. Okuyama, K. Sato, T. Kato, M. Matsuo
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Journal Title
Physical Review Letters
Volume: 128
Issue: 1
Pages: 017701-017701
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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