dorsal/arxiv
View SchemaMicrowave Kerr/Faraday Resonance in Two-dimensional Chiral Superconductors
| Authors | Taiki Matsushita, Jun'ichi Ieda, Yasufumi Araki, Takahiro Morimoto, Ilya Vekhter, Youichi Yanase |
|---|---|
| Categories | |
| ArXiv ID | 2601.10151vv1 |
| URL | https://arxiv.org/abs/2601.10151 |
| License | http://creativecommons.org/licenses/by/4.0/ |
Abstract
We investigate the polar Kerr and Faraday effects in two-dimensional multiband chiral superconductors. We show that the clapping modes--the relative phase and amplitude oscillations between two chiral components of the superconducting order parameter--lie well within the quasiparticle excitation gap in multiband systems and dominate these magneto-optical responses in the microwave regime. The Kerr and Faraday rotation angles exhibit the resonant enhancement with sign reversals in the microwave regime as a function of the light frequency, reaching peak values on the order of 100 nrad--10 $\mu$rad in thin films of candidate chiral superconductors. These resonances are accessible in superconducting atomic layer materials and provide a generic probe of chiral superconductivity in two-dimensional systems.
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"abstract": "We investigate the polar Kerr and Faraday effects in two-dimensional multiband chiral superconductors. We show that the clapping modes--the relative phase and amplitude oscillations between two chiral components of the superconducting order parameter--lie well within the quasiparticle excitation gap in multiband systems and dominate these magneto-optical responses in the microwave regime. The Kerr and Faraday rotation angles exhibit the resonant enhancement with sign reversals in the microwave regime as a function of the light frequency, reaching peak values on the order of 100 nrad--10 $\\mu$rad in thin films of candidate chiral superconductors. These resonances are accessible in superconducting atomic layer materials and provide a generic probe of chiral superconductivity in two-dimensional systems.",
"arxiv_id": "2601.10151",
"authors": [
"Taiki Matsushita",
"Jun\u0027ichi Ieda",
"Yasufumi Araki",
"Takahiro Morimoto",
"Ilya Vekhter",
"Youichi Yanase"
],
"categories": [
"cond-mat.supr-con",
"cond-mat.mtrl-sci",
"cond-mat.str-el"
],
"license": "http://creativecommons.org/licenses/by/4.0/",
"title": "Microwave Kerr/Faraday Resonance in Two-dimensional Chiral Superconductors",
"url": "https://arxiv.org/abs/2601.10151",
"version": "v1"
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