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Title:
Pairing symmetry signatures of T1 in superconducting ferromagnets
Authors:
Dahal, Hari P.; Jackiewicz, Jason; Bedell, Kevin S.
Affiliation:
AA(Department of Physics, Boston College, Chestnut Hill, Massachusetts 02467, USA), AB(Department of Physics, Boston College, Chestnut Hill, Massachusetts 02467, USA), AC(Department of Physics, Boston College, Chestnut Hill, Massachusetts 02467, USA)
Publication:
Physical Review B, vol. 72, Issue 17, id. 172506 (PhRvB Homepage)
Publication Date:
11/2005
Origin:
APS
PACS Keywords:
Heavy-fermion superconductors, Strongly correlated electron systems; heavy fermions, Band and itinerant models, Effects of internal magnetic fields
Abstract Copyright:
(c) 2005: The American Physical Society
DOI:
10.1103/PhysRevB.72.172506
Bibliographic Code:
2005PhRvB..72q2506D

Abstract

We study the nuclear relaxation rate 1/T1 as a function of temperature for a superconducting ferromagnetic coexistent system using a p -wave triplet model for the superconducting pairing symmetry. This calculation is contrasted with a singlet s -wave previously studied. We see for the s -wave case that there is a Hebel-Slichter peak, albeit reduced due to the magnetization, and no peak for the p -wave case. We then compare these results to a nuclear relaxation rate experiment on UGe2 to determine the possible pairing symmetry signatures in that material. It is seen that the experimental data are inconclusive to rule out the possibility of s -wave pairing in UGe2 .
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