Exceeding the Pauli limit in (TMTSF)2PF6

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

doi:10.1016/S0921-4526(00)00689-X

Exceeding the Pauli limit in (TMTSF)₂PF₆

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

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

Abstract

The resistive upper critical field along the b-axis in the molecular organic superconductor (TMTSF)₂PF₆ is investigated in fields up to 17.5 T and temperatures up to T/T_c approximately 1/60, at various pressures near the border between spin density wave and metallic states. Previously, we had obtained a novel crossover where H_c2∥b exceeded both H_c2∥a (in opposition to band structure) and the Pauli paramagnetic limit (μ_oH_p≈2 T). In an optimum pressure setting reported here, it is found that the onset of superconductivity persists to 9 T (more than 4 times H_p), strongly suggestive of triplet Cooper pairing.

Original language	English (US)
Pages (from-to)	413-417
Number of pages	5
Journal	Physica B: Condensed Matter
Volume	294-295
DOIs	https://doi.org/10.1016/S0921-4526(00)00689-X
State	Published - Jan 2001

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/S0921-4526(00)00689-X

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title = "Exceeding the Pauli limit in (TMTSF)2PF6",

abstract = "The resistive upper critical field along the b-axis in the molecular organic superconductor (TMTSF)2PF6 is investigated in fields up to 17.5 T and temperatures up to T/Tc approximately 1/60, at various pressures near the border between spin density wave and metallic states. Previously, we had obtained a novel crossover where Hc2∥b exceeded both Hc2∥a (in opposition to band structure) and the Pauli paramagnetic limit (μoHp≈2 T). In an optimum pressure setting reported here, it is found that the onset of superconductivity persists to 9 T (more than 4 times Hp), strongly suggestive of triplet Cooper pairing.",

author = "Lee, {I. J.} and Naughton, {M. J.} and Chaikin, {P. M.}",

note = "Funding Information: We would like to thank the NHMFL, where some of these experiments were performed, and support from the National Science Foundation under Grants DMR-9701597 (MJN) and DMR-9976576 (PMC). Copyright: Copyright 2018 Elsevier B.V., All rights reserved.",

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doi = "10.1016/S0921-4526(00)00689-X",

language = "English (US)",

volume = "294-295",

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journal = "Physica B: Condensed Matter",

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T1 - Exceeding the Pauli limit in (TMTSF)2PF6

AU - Lee, I. J.

AU - Naughton, M. J.

AU - Chaikin, P. M.

N1 - Funding Information: We would like to thank the NHMFL, where some of these experiments were performed, and support from the National Science Foundation under Grants DMR-9701597 (MJN) and DMR-9976576 (PMC). Copyright: Copyright 2018 Elsevier B.V., All rights reserved.

PY - 2001/1

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N2 - The resistive upper critical field along the b-axis in the molecular organic superconductor (TMTSF)2PF6 is investigated in fields up to 17.5 T and temperatures up to T/Tc approximately 1/60, at various pressures near the border between spin density wave and metallic states. Previously, we had obtained a novel crossover where Hc2∥b exceeded both Hc2∥a (in opposition to band structure) and the Pauli paramagnetic limit (μoHp≈2 T). In an optimum pressure setting reported here, it is found that the onset of superconductivity persists to 9 T (more than 4 times Hp), strongly suggestive of triplet Cooper pairing.

AB - The resistive upper critical field along the b-axis in the molecular organic superconductor (TMTSF)2PF6 is investigated in fields up to 17.5 T and temperatures up to T/Tc approximately 1/60, at various pressures near the border between spin density wave and metallic states. Previously, we had obtained a novel crossover where Hc2∥b exceeded both Hc2∥a (in opposition to band structure) and the Pauli paramagnetic limit (μoHp≈2 T). In an optimum pressure setting reported here, it is found that the onset of superconductivity persists to 9 T (more than 4 times Hp), strongly suggestive of triplet Cooper pairing.

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JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

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Exceeding the Pauli limit in (TMTSF)₂PF₆

Abstract

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