Intrinsic Hall effect in a multiband chiral superconductor in the absence of an external magnetic field

Abstract

We identify an intrinsic Hall effect in multiband chiral superconductors in the absence of a magnetic field (i.e., an anomalous Hall effect). This effect arises from interband transitions involving time-reversal symmetry-breaking chiral Cooper pairs. We discuss the implications of this effect for the putative chiral p-wave superconductor, Sr2RuO4, and show that it can contribute significantly to Kerr rotation experiments. Since the magnitude of the effect depends on the structure of the order parameter across the bands, this result may be used to distinguish between different models proposed for the superconducting state of Sr2RuO4.

7 pages, 4 figures. Published version

References in corpus (8)

• High Resolution Polar Kerr Effect Measurements of Sr2RuO4: Evidence for Broken Time Reversal Symmetry in the Superconducting State
• Strong spin-orbit coupling effects on the Fermi surface of Sr2RuO4 and Sr2RhO4
• Hidden quasi one-dimensional superconductivity in Sr${}_2$RuO${}_4$
• Is Sr2RuO4 a Chiral P-Wave Superconductor?
• Collective modes and electromagnetic response of a chiral superconductor
• Frequency and temperature dependence of the anomalous Hall conductivity in a chiral px+ipy superconductor with impurities
• Impurity Induced Polar Kerr Effect in A Chiral p-wave Superconductor
• Gauge-invariant electromagnetic response of a chiral px+ipy superconductor

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• The Kerr rotation in the unconventional superconductor Sr${}_2$RuO${}_4$
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• Exotic Cooper pairing in multi-orbital models of Sr${}_2$RuO${}_4$
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• Superconductivity in Correlated Multi-Orbital Systems with Spin-Orbit Coupling: Coexistence of Even- and Odd-Frequency Pairing and the Case of Strontium Ruthenate
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• High magnetic field superconductivity in a two-band superconductor
• Anomalous Hall Effect on the surface of topological Kondo insulators
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• Distortional weak-coupling instability of Bogoliubov Fermi surfaces
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• Influence of Fermi Surface Geometry and Van Hove Singularities on the Optical Response of Sr${}_2$RuO${}_4$
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