Anisotropy of the Upper Critical Field in (TMTSF)2PF6

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

doi:10.1103/PhysRevLett.78.3555

Anisotropy of the Upper Critical Field in (TMTSF)₂PF₆

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

Department of Physics

SUNY Buffalo
Princeton University

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

333 Scopus citations

Abstract

The temperature dependence of the upper critical magnetic field H_c2(T) in the quasi-one-dimensional molecular superconductor (TMTSF)₂PF₆ was determined via resistivity, for the intrachain (a) interchain (b), and interplane (c) ^* directions. For H along a and b, H_c2(T) exhibits pronounced positive curvature, with no sign of saturation to 0.1 K. A novel anisotropy inversion is observed, H_c2^b grows larger than H_c2^a and exceeds the paramagnetic limit by more than 200%. The anomalous shape of H_c2(T) is consistent with recent predictions of unconventional behavior in anisotropic superconductors, including the possibility of triplet pairing and reentrant superconductivity in very high field.

Original language	English
Pages (from-to)	3555-3558
Number of pages	4
Journal	Physical Review Letters
Volume	78
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevLett.78.3555
State	Published - 1997.05.5

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10.1103/PhysRevLett.78.3555

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title = "Anisotropy of the Upper Critical Field in (TMTSF)2PF6",

abstract = "The temperature dependence of the upper critical magnetic field Hc2(T) in the quasi-one-dimensional molecular superconductor (TMTSF)2PF6 was determined via resistivity, for the intrachain (a) interchain (b), and interplane (c) * directions. For H along a and b, Hc2(T) exhibits pronounced positive curvature, with no sign of saturation to 0.1 K. A novel anisotropy inversion is observed, Hc2b grows larger than Hc2a and exceeds the paramagnetic limit by more than 200\%. The anomalous shape of Hc2(T) is consistent with recent predictions of unconventional behavior in anisotropic superconductors, including the possibility of triplet pairing and reentrant superconductivity in very high field.",

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T1 - Anisotropy of the Upper Critical Field in (TMTSF)2PF6

AU - Lee, I. J.

AU - Naughton, M. J.

AU - Danner, G. M.

AU - Chaikin, P. M.

PY - 1997/5/5

Y1 - 1997/5/5

N2 - The temperature dependence of the upper critical magnetic field Hc2(T) in the quasi-one-dimensional molecular superconductor (TMTSF)2PF6 was determined via resistivity, for the intrachain (a) interchain (b), and interplane (c) * directions. For H along a and b, Hc2(T) exhibits pronounced positive curvature, with no sign of saturation to 0.1 K. A novel anisotropy inversion is observed, Hc2b grows larger than Hc2a and exceeds the paramagnetic limit by more than 200%. The anomalous shape of Hc2(T) is consistent with recent predictions of unconventional behavior in anisotropic superconductors, including the possibility of triplet pairing and reentrant superconductivity in very high field.

AB - The temperature dependence of the upper critical magnetic field Hc2(T) in the quasi-one-dimensional molecular superconductor (TMTSF)2PF6 was determined via resistivity, for the intrachain (a) interchain (b), and interplane (c) * directions. For H along a and b, Hc2(T) exhibits pronounced positive curvature, with no sign of saturation to 0.1 K. A novel anisotropy inversion is observed, Hc2b grows larger than Hc2a and exceeds the paramagnetic limit by more than 200%. The anomalous shape of Hc2(T) is consistent with recent predictions of unconventional behavior in anisotropic superconductors, including the possibility of triplet pairing and reentrant superconductivity in very high field.

UR - https://www.scopus.com/pages/publications/4244076994

U2 - 10.1103/PhysRevLett.78.3555

DO - 10.1103/PhysRevLett.78.3555

M3 - Journal article

AN - SCOPUS:4244076994

SN - 0031-9007

VL - 78

SP - 3555

EP - 3558

JO - Physical Review Letters

JF - Physical Review Letters

IS - 18

ER -

Anisotropy of the Upper Critical Field in (TMTSF)₂PF₆

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