Effect of the vortices on the nuclear spin relaxation rate in the unconventional pairing states of the organic superconductor (TMTSF)2PF6

M. Takigawa, M. Ichioka, K. Kuroki, Y. Asano, Y. Tanaka

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6 Citations (Scopus)

Abstract

This Letter theoretically discusses quasiparticle states and nuclear spin relaxation rates T1-1 in the quasi-one-dimensional superconductor (TMTSF)2PF6 under a magnetic field applied parallel to the conduction chains. We study the effects of Josephson-type vortices on T1-1 by solving the Bogoliubov-de Gennes equation for p-, d- or f-wave pairing interactions. In the presence of line nodes in pairing functions, T1-1 is proportional to T in sufficiently low temperatures because quasiparticles induced by vortices at the Fermi energy relax spins. We also try to identify the pairing symmetry of (TMTSF)2PF6.

Original languageEnglish
Article number187002
JournalPhysical Review Letters
Volume97
Issue number18
DOIs
Publication statusPublished - Nov 9 2006

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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