2014 Fiscal Year Final Research Report
Theoretical study of a novel superconductivity induced by spin-orbit coupling and pseudospin fluctuation
| Project/Area Number |
24740251
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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 |
Condensed matter physics II
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| Research Institution | The Institute of Physical and Chemical Research |
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Principal Investigator |
WATANABE Hiroshi 独立行政法人理化学研究所, 創発物性科学研究センター, 協力研究員 (50571238)
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| Research Collaborator |
SHIRAKAWA Tomonori 理化学研究所, 柚木計算物性物理研究室, 基礎科学特別研究員 (40571237)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | スピン軌道相互作用 / イリジウム酸化物 / 異方的超伝導 / 擬スピン / モット絶縁体 / スレーター絶縁体 / 変分モンテカルロ法 / MPI並列 |
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| Outline of Final Research Achievements |
In this research project, I have revealed the manifestation mechanism of novel insulating state in 5d electron system Sr2IrO4 with a large spin-orbit coupling. I have also predicted and proposed a novel superconductivity expected around the insulating state. These results have contributed to deeper understanding and further progress of 5d electron system whose detailed property has not been clarified so much. Moreover, I have established the calculation method which enables to treat the spin-orbit coupling using variational Monte Carlo method. This method is applicable to multiorbital strongly-correlated electron system in general.
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| Free Research Field |
強相関電子系の理論
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