Issue |
Europhys. Lett.
Volume 72, Number 3, November 2005
|
|
---|---|---|
Page(s) | 437 - 443 | |
Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
DOI | https://doi.org/10.1209/epl/i2005-10242-8 | |
Published online | 28 September 2005 |
Pairing state in multicomponent superconductors
Department of Physics and Astronomy, University of Tennessee Knoxville, TN 37996, USA
Received:
28
June
2005
Accepted:
6
September
2005
We use the microscopic weak-coupling theory to predict the pairing state in superconductors of cubic, hexagonal, or tetragonal symmetry, where the order parameter is multicomponent, i.e., transforms according to either a 2-dimensional or a 3-dimensional representation of the crystal point group. We show that the superconducting phase usually breaks the time-reversal symmetry for singlet multicomponent superconductors. The superconducting order parameter for triplet superconductors in most cases turns out to be non-magnetic.
PACS: 74.20.-z – Theories and models of superconducting state / 74.20.Rp – Pairing symmetries
(other than -wave) / 74.25.Dw – Superconductivity phase diagrams
© EDP Sciences, 2005
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