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arXiv · 1107.1757

Spin-orbit induced mixed-parity pairing in Sr$_2$RuO$_4$: a quantum many-body calculation

J. J. Deisz·T. E. Kidd
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Abstract

The unusual superconducting state in Sr$_2$RuO$_4$ has long been viewed as being analogous to a superfluid state in liquid $^3$He. Nevertheless, calculations based on this odd-parity state are presently unable to completely reconcile the properties of Sr$_2$RuO$_4$. 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$_2$RuO$_4$. 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$_2$RuO$_4$.

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J. J. Deisz, T. E. Kidd. 2011-07-09. Spin-orbit induced mixed-parity pairing in Sr$_2$RuO$_4$: a quantum many-body calculation. https://arxiv.org/abs/1107.1757

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