Angular-dependent upper critical field studies of (TMTSF)2PF6

I. J. Lee; P. M. Chaikin; M. J. Naughton

Angular-dependent upper critical field studies of (TMTSF)₂PF₆

I. J. Lee, P. M. Chaikin, M. J. Naughton

Research output: Contribution to journal › Article › peer-review

Abstract

It has been suggested that the strong upward curvature and large enhancement of the b axis critical fields in (TMTSF)₂PF₆ are the result of a magnetic field-induced dimensional crossover (FIDC) effect. In this paper we present a critical test of the FIDC for this material at a pressure of 5.7 kbar. Decoupled two-dimensional layers should exhibit a cusp in H_c2 vs angle near H parallel to the layers. Rather we see no cusp in H_c2(θ) and the anisotropy decreases as temperature is reduced. Our data, in this pressure regime, are more consistent with a recently proposed insulator-superconductor slab model.

Original language	English (US)
Article number	180502
Pages (from-to)	1805021-1805024
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	65
Issue number	18
State	Published - May 1 2002

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Cite this

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abstract = "It has been suggested that the strong upward curvature and large enhancement of the b axis critical fields in (TMTSF)2PF6 are the result of a magnetic field-induced dimensional crossover (FIDC) effect. In this paper we present a critical test of the FIDC for this material at a pressure of 5.7 kbar. Decoupled two-dimensional layers should exhibit a cusp in Hc2 vs angle near H parallel to the layers. Rather we see no cusp in Hc2(θ) and the anisotropy decreases as temperature is reduced. Our data, in this pressure regime, are more consistent with a recently proposed insulator-superconductor slab model.",

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N2 - It has been suggested that the strong upward curvature and large enhancement of the b axis critical fields in (TMTSF)2PF6 are the result of a magnetic field-induced dimensional crossover (FIDC) effect. In this paper we present a critical test of the FIDC for this material at a pressure of 5.7 kbar. Decoupled two-dimensional layers should exhibit a cusp in Hc2 vs angle near H parallel to the layers. Rather we see no cusp in Hc2(θ) and the anisotropy decreases as temperature is reduced. Our data, in this pressure regime, are more consistent with a recently proposed insulator-superconductor slab model.

AB - It has been suggested that the strong upward curvature and large enhancement of the b axis critical fields in (TMTSF)2PF6 are the result of a magnetic field-induced dimensional crossover (FIDC) effect. In this paper we present a critical test of the FIDC for this material at a pressure of 5.7 kbar. Decoupled two-dimensional layers should exhibit a cusp in Hc2 vs angle near H parallel to the layers. Rather we see no cusp in Hc2(θ) and the anisotropy decreases as temperature is reduced. Our data, in this pressure regime, are more consistent with a recently proposed insulator-superconductor slab model.

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Angular-dependent upper critical field studies of (TMTSF)₂PF₆

Abstract

ASJC Scopus subject areas

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