Faculty Publications

Title

Quantum many-body calculation of mixed-parity pairing in the Sr 2RuO 4 superconductor induced by spin-orbit coupling

Document Type

Article

Journal/Book/Conference Title

Physical Review Letters

Volume

107

Issue

27

Abstract

The unusual superconducting state in Sr 2RuO 4 has long been viewed as being analogous to a superfluid state in liquid He3. Nevertheless, calculations based on this odd-parity state are presently unable to completely reconcile the properties of Sr 2RuO 4. Using a self-consistent quantum many-body scheme that employs realistic parameters, we are able to model several signature properties of the normal and superconducting states of Sr 2RuO 4. We find that the dominant component of the model superconducting state is of even parity and closely related to superconducting state for the high-T c cuprates although a smaller odd-parity component is induced by spin-orbit coupling. This mixed pairing state gives a more complete representation of the complex phenomena measured in Sr 2RuO 4. © 2011 American Physical Society.

Original Publication Date

12-29-2011

DOI of published version

10.1103/PhysRevLett.107.277003

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