2016 Fiscal Year Final Research Report
Theoretical studies on topological aspects of silicene and related materials
| Project/Area Number |
25400317
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Condensed matter physics I
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| Research Institution | The University of Tokyo |
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Principal Investigator |
Ezawa Motohiko 東京大学, 大学院工学系研究科(工学部), 講師 (10504805)
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Keywords | トポロジカル原子層物質 / トポロジカル絶縁体 / スキルミオン / スカーミオン / トポロジカル・ソリトン / ワイル半金属 / トポロジカル相転移 / ループ・ノード半金属 |
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| Outline of Final Research Achievements |
I studied electronic properties of topological monolayer materials such as silicene, germanene and stanene. I revealed various topological phase transitions induced by electric field and photo-irradiation, and proposed many topological devices such as a topological field-effect transistor. I determined the band
structure of the group-V and the group-III monolayer materials. Especially, I revealed the edge states of phosphorene, which is a monolayer material made of phosphorus. I also calculated the band structure of arsenene, which is a monolayer arsenic and aluminene, which is a monolayer aluminium, by first-principles calculations.
Furthermoe, I studied non-equilibrium dynamics of skyrmions, which are topological solitons in magnets.
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| Free Research Field |
トポロジカル物性理論
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