Nuclear magnetic relaxation rate in a noncentrosymmetric superconductor

Physical Review B - Condensed Matter and Materials Physics Volume 73 Issue 9 published_at 2006-03-17
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Title ( eng )
Nuclear magnetic relaxation rate in a noncentrosymmetric superconductor
Creator
Hayashi Nobuhiko
Wakabayashi Katsunori
Frigeri Paolo A.
Sigrist Manfred
Source Title
Physical Review B - Condensed Matter and Materials Physics
Volume 73
Issue 9
Abstract
Noncentrosymmetric superconductors possess, in general, order parameters of mixed parity, i.e., the Cooper pairing state consists of spin-singlet and spin-triplet pairing components. We show that this property has important implications for the NMR and other measurable quantities in the heavy Fermion superconductor CePt3Si. The aspect of parity mixing explains the apparently contradicting observations of a Hebel-Slichter peak in the nuclear spin-lattice relaxation rate T1 -1 and the presence of power law in the low-temperature behavior of certain physical quantities, indicating line nodes in the quasiparticle gap.
Language
eng
Resource Type journal article
Publisher
American Physical Society
Date of Issued 2006-03-17
Rights
Copyright (c) 2006 American Physical Society.
Publish Type Version of Record
Access Rights open access
Source Identifier
[ISSN] 1098-0121
[DOI] 10.1103/PhysRevB.73.092508
[NCID] AA11187113
[DOI] http://dx.doi.org/10.1103/PhysRevB.73.092508