2011 Fiscal Year Final Research Report
Study of the Rashba effect at oxide heterointerfaces
| Project/Area Number |
21340091
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | The University of Tokyo |
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Principal Investigator |
HWANG Harold y. 東京大学, 大学院・新領域創成科学研究科, 特任研究員 (30361611)
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| Co-Investigator(Kenkyū-buntansha) |
HIKITA Yasuyuki 東京大学, 大学院・新領域創成科学研究科, 助教 (50466827)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 強相関系 / 酸化物ヘテロ界面 |
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| Research Abstract |
Atomic scale controlled transition metal oxide heterostructures are becoming a platform for exploring novel electronic ground states. Here, we focus on high-mobility electron gas systems confined on the atomic scale using transition metal oxides. We succeeded in controlling the conductivity of the metallic interface between two insulators LaAlO_3/SrTiO_3 by external voltage or adsorption of polar molecules. In the case of an ultrathin n-type SrTiO_3 confined between insulating SrTiO_3, we observed two-dimensional quantum oscillations and two-dimensional superconductivity.
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