Odd-Frequency Superconductivity in Sr2RuO4 Measured by Kerr Rotation

We establish the existence of bulk odd-frequency superconductivity in Sr2RuO4 and show that an intrinsic Kerr effect is direct evidence of this state. We use both general two-and three-orbital models, as well as a realistic tight-binding description of Sr2RuO4 to demonstrate that odd-frequency pairi...

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Bibliographic Details
Published in:Physical review letters 2017-08, Vol.119 (8)
Main Authors: Komendova, Lucia, Black-Schaffer, Annica M.
Format: Article
Language:English
Online Access:Get full text
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Summary:We establish the existence of bulk odd-frequency superconductivity in Sr2RuO4 and show that an intrinsic Kerr effect is direct evidence of this state. We use both general two-and three-orbital models, as well as a realistic tight-binding description of Sr2RuO4 to demonstrate that odd-frequency pairing arises due to finite hybridization between different orbitals in the normal state, and is further enhanced by finite interorbital pairing.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.119.087001