Cooper pairs with broken time-reversal, parity, and spin-rotational symmetries in singlet type-II superconductors

O. Dutta; A. G. Lebed

doi:10.1103/PhysRevB.78.224504

Cooper pairs with broken time-reversal, parity, and spin-rotational symmetries in singlet type-II superconductors

O. Dutta, A. G. Lebed

Physics

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

11 Scopus citations

Abstract

We show that singlet superconductivity in the Abrikosov vortex phase is absolutely unstable with respect to the appearance of a chiral triplet component of a superconducting order parameter. This chiral component p _x+ip_y breaks time-reversal, parity, and spin-rotational symmetries of the internal order parameter responsible for a relative motion of two electrons in the Cooper pair. We demonstrate that the symmetry-breaking Pauli paramagnetic effects can be tuned by a magnetic-field strength and direction and can be made of the order of unity in organic and high-temperature layered superconductors.

Original language	English (US)
Article number	224504
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	78
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevB.78.224504
State	Published - Dec 1 2008

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.78.224504

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AU - Lebed, A. G.

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N2 - We show that singlet superconductivity in the Abrikosov vortex phase is absolutely unstable with respect to the appearance of a chiral triplet component of a superconducting order parameter. This chiral component p x+ipy breaks time-reversal, parity, and spin-rotational symmetries of the internal order parameter responsible for a relative motion of two electrons in the Cooper pair. We demonstrate that the symmetry-breaking Pauli paramagnetic effects can be tuned by a magnetic-field strength and direction and can be made of the order of unity in organic and high-temperature layered superconductors.

AB - We show that singlet superconductivity in the Abrikosov vortex phase is absolutely unstable with respect to the appearance of a chiral triplet component of a superconducting order parameter. This chiral component p x+ipy breaks time-reversal, parity, and spin-rotational symmetries of the internal order parameter responsible for a relative motion of two electrons in the Cooper pair. We demonstrate that the symmetry-breaking Pauli paramagnetic effects can be tuned by a magnetic-field strength and direction and can be made of the order of unity in organic and high-temperature layered superconductors.

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Cooper pairs with broken time-reversal, parity, and spin-rotational symmetries in singlet type-II superconductors

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