Site-selective NMR for odd-frequency Cooper pairs around vortex in chiral p -wave superconductors

Kenta K. Tanaka, Masanori Ichioka, Seiichiro Onari

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

In order to identify the pairing symmetry with chirality, we study site-selective NMR in chiral p-wave superconductors. We calculate local nuclear relaxation rate T1-1 in the vortex lattice state by Eilenberger theory, including the applied magnetic field dependence. We find that T1-1 in the NMR resonance line shape is different between two chiral states p±(=px±ipy), depending on whether the chirality is parallel or antiparallel to the vorticity. Anomalous suppression of T1-1 occurs around the vortex core in the chiral p- wave due to the negative coherence term coming from the odd-frequency s-wave Cooper pair induced around the vortex with Majorana state.

Original languageEnglish
Article number094507
JournalPhysical Review B
Volume93
Issue number9
DOIs
Publication statusPublished - Mar 7 2016

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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