A phenomenological model of the superconducting state of the Bechgaard salts

Powell, B. J. (2008) A phenomenological model of the superconducting state of the Bechgaard salts. Journal of Physics: Condensed Matter, 20 34: 345234-1-345234-5. doi:10.1088/0953-8984/20/34/345234


Author Powell, B. J.
Title A phenomenological model of the superconducting state of the Bechgaard salts
Journal name Journal of Physics: Condensed Matter   Check publisher's open access policy
ISSN 0953-8984
Publication date 2008-08-07
Year available 2008
Sub-type Article (original research)
DOI 10.1088/0953-8984/20/34/345234
Volume 20
Issue 34
Start page 345234-1
End page 345234-5
Total pages 5
Editor D. K. Ferry
Place of publication Bristol, england
Publisher Institute of Physics Publishing
Collection year 2009
Language eng
Subject 240000 Physical Sciences
020404 Electronic and Magnetic Properties of Condensed Matter; Superconductivity
970102 Expanding Knowledge in the Physical Sciences
C1
Abstract We present a group theoretical analysis of the superconducting state of the Bechgaard salts, e.g., (TMTSF)2PF6 and (TMTSF)2ClO4 (TMTSF: tetramethyltetraselenafulvalene). We show that there are eight symmetry distinct superconducting states. Of these, only the (fully gapped, even frequency, odd parity, triplet) 'polar state' is consistent with the full range of the experiments on the Bechgaard salts. The gap function of the polar state is , where ψuk may be any odd parity function that is translationally invariant. This analysis also predicts that a phase transition, between two superconducting phases, occurs in weak magnetic fields.
Keyword Time-reversal symmetry
Organic superconductors
Unconventional superconductivity
Order-parameter
Spin relaxation
Singlet
(TMTSF)(2)CLO4
(TMTSF)2CLO4
Competition
pressure
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
Centre for Organic Photonics and Electronics
School of Mathematics and Physics
 
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Created: Tue, 31 Mar 2009, 12:56:21 EST by Fiona Krohn on behalf of School of Mathematics & Physics