Study of spin-polarized one-dementional dedge state using by using independently-driven four-tip STM
| Project/Area Number |
15K17464
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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 |
Thin film/Surface and interfacial physical properties
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| Research Institution | The University of Tokyo |
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Principal Investigator |
Takayama Akari 東京大学, 大学院理学系研究科(理学部), 助教 (70722338)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | スピン物性 / Rashba効果 / トポロジカル絶縁体 / 輸送特性 / 磁性 / 2次元超伝導 |
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| Outline of Final Research Achievements |
We have found the transport property of topological insulator and surface superstructure with Rashba effect, which have spin-polarized band on surface or edge. We have investigated the transport properties on step edge for topological insulators Bi2Se3 and Bi2Te3 thin films on the Si(111) substrate by using the in-situ 4PP electrical conductivity measurement. We have also clarified various physical properties of MnBi2Se4/Bi2Se3, which is heterojunction between magnetic insulator and topological insulator. In addition, we have demonstrated the superconductivity of (Tl, Pb)/Si(111) and (Tl, Pb)/Ge(111) which show the giant Rashba effect by using 4PP resistivity measurement and STM/STS.
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Report
(4 results)
Research Products
(25 results)
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[Journal Article] Emergence of charge density waves and a pseudogap in single-layer TiTe22017
Author(s)
P. Chen, Woei Wu Pai, Y.-H. Chan, A. Takayama, C.-Z. Xu, A. Karn, S. Hasegawa, M. Y. Chou, S.-K. Mo, A.-V. Fedorov, and T.-C. Chiang
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Journal Title
Nature Communications
Volume: 8
Issue: 1
Pages: 516-516
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Large-Gap Magnetic Topological Heterostructure Formed by Subsurface Incorporation of a Ferromagnetic Layer2017
Author(s)
T. Hirahara, S. V. Eremeev, T. Shirasawa, Y. Okuyama, T. Kubo, R. Nakanishi, R. Akiyama, A. Takayama, T. Hajiri, S. Ideta, M. Matsunami, K. Sumida, K. Miyamoto, Y. Takagi, K. Tanaka, T. Okuda, T. Yokoyama, S. Kimura, S. Hasegawa, E. V. Chulkov
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Journal Title
NANO Letters
Volume: 17
Issue: 6
Pages: 3493-3500
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Proving Nontrivial Topology of Pure Bismuth by Quantum Confinement2016
Author(s)
S. Ito, B. Feng, M. Arita, A. Takayama, R.-Y. Liu, T. Someya, W.-C. Chen, T. Iimori, H. Namatame, M. Taniguchi, C.-M. Cheng, S.-J. Tang, F. Komori, K. Kobayashi, T.-C. Chiang, and I. Matsuda
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Journal Title
Physical Review Letters
Volume: 117
Issue: 23
Pages: 236402-236402
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Presentation] 走査トンネル分光測定による(Tl,Pb)/Si(111)表面超構造における超伝導の観測2016
Author(s)
中村友謙, H. Kim, 一ノ倉聖, 高山あかり, 秋山了太, A. Z. Zotov, A. A. Saranin, 長谷川幸雄, 長谷川修司
Organizer
物性研短期究会「走査トンネル顕微鏡による物性研究の現状と展望」
Place of Presentation
東京大学物性研究所, 柏
Year and Date
2016-10-31
Related Report
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