2013 Fiscal Year Final Research Report
NMR study of topological superconductor
| Project/Area Number |
23740273
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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 | Institute of Physical and Chemical Research (2013)
Okayama University (2011-2012) |
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Principal Investigator |
IWASE Fumitatsu 独立行政法人理化学研究所, 加藤分子物性研究室, 協力研究員 (30512868)
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| Project Period (FY) |
2011 – 2013
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| Keywords | トポロジカル超伝導 / 核磁気共鳴 / 量子スピン液体 |
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| Research Abstract |
A strong candidate of topological superconductor CuxBi2Se3 was studied by NMR. 63Cu, 209Bi, 77Se NMR signals were found. The NMR study indicates that the Bi2Se3 layer is the conducting layer. 125Te NMR study revealed a superconducting transition in a new superconducting material Ir1-xPtxTe2, which has strong spin-orbit coupling. Next, a superconductivity near a quantum spin liquid phase was focused. The superconductivity was successfully observed by resistivity measurement under pressure in organic mixed crystals Et2Me2As1-xSbx[Pd(dmit)2]2.
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