ID | 56314 |
FullText URL | |
Author |
Tanaka, Kenta K.
Department of Physics, Okayama University
Ichioka, Masanori
Department of Physics, Okayama University
Onari, Seiichiro
Department of Physics, Okayama University
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Abstract | Local NMR relaxation rates in the vortex state of chiral and helical p-wave superconductors are investigated by the quasiclassical Eilenberger theory. We calculate the spatial and resonance frequency dependences of the local NMR spin-lattice relaxation rate T-1(-1) and spin-spin relaxation rate T-2(-1). Depending on the relation between the NMR relaxation direction and the d-vector symmetry, the local T-1(-1) and T-2(-1) in the vortex core region show different behaviors. When the NMR relaxation direction is parallel to the d-vector component, the local NMR relaxation rate is anomalously suppressed by the negative coherence effect due to the spin dependence of the odd- frequency s-wave spin-triplet Cooper pairs. The difference between the local T-1(-1) and T-2(-1) in the site-selective NMR measurement is expected to be a method to examine the d-vector symmetry of candidate materials for spin-triplet superconductors.
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Note | This is an article published by American Physical Society
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Published Date | 2018-04-10
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Publication Title |
Physical Review B
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Volume | volume97
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Publisher | American Physical Society
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Start Page | 134507
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ISSN | 2469-9950
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NCID | AA11187113
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Content Type |
Journal Article
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language |
English
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OAI-PMH Set |
岡山大学
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File Version | publisher
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DOI | |
Web of Science KeyUT | |
Related Url | isVersionOf https://doi.org/10.1103/PhysRevB.97.134507
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