Publicly Offered Research
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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.
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。
All 2022 2021 2019 2018 Other
All Int'l Joint Research (3 results) Journal Article (5 results) (of which Int'l Joint Research: 2 results, Peer Reviewed: 5 results, Open Access: 1 results) Presentation (17 results) (of which Int'l Joint Research: 7 results, Invited: 2 results)
Physical Review Letters
Volume: 128 Issue: 1 Pages: 017701-017701
10.1103/physrevlett.128.017701
Physical Review B
Volume: 103 Issue: 15
10.1103/physrevb.103.155414
Volume: 99 Issue: 11
10.1103/physrevb.99.115409
Volume: 100 Issue: 15
10.1103/physrevb.100.155417
Journal of Physics: Conf. Series
Volume: 969 Pages: 0121371-6
10.1088/1742-6596/969/1/012137
