On the angular dependences of the superconducting and normal state properties of the Bechgaard salts: Triplet superconductivity, enhanced Hc2 near the S-I boundary, giant Nernst effect at lebed magic angles

Weida Wu; Injae Lee; S. E. Brown; M. J. Naughton; P. M. Chaikin

doi:10.1016/S0379-6779(02)00991-8

On the angular dependences of the superconducting and normal state properties of the Bechgaard salts: Triplet superconductivity, enhanced H_c2 near the S-I boundary, giant Nernst effect at lebed magic angles

Weida Wu, Injae Lee, S. E. Brown, M. J. Naughton, P. M. Chaikin

Research output: Contribution to journal › Conference article › peer-review

Abstract

Our recent experiments on (TMTSF)₂PF₆ indicate that: 1) the Knight shift along both the a and b axes remains unchanged on going through the superconducting transition (suggesting triplet superconductivity with d vector along c), 2) Hc2 is enhanced near the critical pressure for the superconducting-insulating transition by the formation of slabs parallel to the magnetic field and the anisotropy in Hc2 is determined by penetration depth rather than coherence length anisotropies, and 3) in the normal state, for fields near the Lebed magic angles the current is locked into the direction of the magic angles and there is an anomalous Nernst effect which near the magic angles is ∼200 times larger than what would be expected from Boltzmann transport.

Original language	English (US)
Pages (from-to)	1305-1307
Number of pages	3
Journal	Synthetic Metals
Volume	137
Issue number	1-3
DOIs	https://doi.org/10.1016/S0379-6779(02)00991-8
State	Published - Apr 4 2003
Event	ICSM 2002 - Shanghai, China Duration: Jun 29 2002 → Jul 5 2002

Keywords

Magnetotransport
Metal-Insulator Transitions
NMR
Organic Superconductors
Thermopower

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/S0379-6779(02)00991-8

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On the angular dependences of the superconducting and normal state properties of the Bechgaard salts: Triplet superconductivity, enhanced H_c2 near the S-I boundary, giant Nernst effect at lebed magic angles. / Wu, Weida; Lee, Injae; Brown, S. E. et al.
In: Synthetic Metals, Vol. 137, No. 1-3, 04.04.2003, p. 1305-1307.

Research output: Contribution to journal › Conference article › peer-review

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abstract = "Our recent experiments on (TMTSF)2PF6 indicate that: 1) the Knight shift along both the a and b axes remains unchanged on going through the superconducting transition (suggesting triplet superconductivity with d vector along c), 2) Hc2 is enhanced near the critical pressure for the superconducting-insulating transition by the formation of slabs parallel to the magnetic field and the anisotropy in Hc2 is determined by penetration depth rather than coherence length anisotropies, and 3) in the normal state, for fields near the Lebed magic angles the current is locked into the direction of the magic angles and there is an anomalous Nernst effect which near the magic angles is ∼200 times larger than what would be expected from Boltzmann transport.",

keywords = "Magnetotransport, Metal-Insulator Transitions, NMR, Organic Superconductors, Thermopower",

author = "Weida Wu and Injae Lee and Brown, {S. E.} and Naughton, {M. J.} and Chaikin, {P. M.}",

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AU - Wu, Weida

AU - Lee, Injae

AU - Brown, S. E.

AU - Naughton, M. J.

AU - Chaikin, P. M.

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AB - Our recent experiments on (TMTSF)2PF6 indicate that: 1) the Knight shift along both the a and b axes remains unchanged on going through the superconducting transition (suggesting triplet superconductivity with d vector along c), 2) Hc2 is enhanced near the critical pressure for the superconducting-insulating transition by the formation of slabs parallel to the magnetic field and the anisotropy in Hc2 is determined by penetration depth rather than coherence length anisotropies, and 3) in the normal state, for fields near the Lebed magic angles the current is locked into the direction of the magic angles and there is an anomalous Nernst effect which near the magic angles is ∼200 times larger than what would be expected from Boltzmann transport.

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