Electromagnetic Response of a $k_x\pm ik_y$ Superconductor: Effect of Order Parameter Collective Modes
Strongly Correlated Electrons
2009-10-31 v1 Superconductivity
Abstract
Effects of order parameter collective modes on electromagnetic response are studied for a clean spin-triplet superconductor with orbital symmetry, which has been proposed as a candidate pairing symmetry for SrRuO. It is shown that the superconductor has characteristic massive collective modes analogous to the clapping mode in the A-phase of superfluid He. We discuss the contribution from the collective modes to ultrasound attenuation and electromagnetic absorption. We show that in the electromagnetic absorption spectrum the clapping mode gives rise to a resonance peak well below the pair breaking frequency, while the ultrasound attenuation is hardly influenced by the collective excitations.
Keywords
Cite
@article{arxiv.cond-mat/0003249,
title = {Electromagnetic Response of a $k_x\pm ik_y$ Superconductor: Effect of Order Parameter Collective Modes},
author = {S. Higashitani and K. Nagai},
journal= {arXiv preprint arXiv:cond-mat/0003249},
year = {2009}
}
Comments
4 pages RevTex, 1 eps figure