Surface Cooper pair spin waves in triplet superconductors

Abstract

We study the electrodynamics of spin triplet superconductors including dipolar interactions, which give rise to an interplay between the collective spin dynamics of the condensate and orbital Meissner screening currents. Within this theory, we identify a class of spin waves that originate from the coupled dynamics of the spin-symmetry breaking triplet order parameter and the electromagnetic field. In particular, we study magnetostatic spin wave modes that are localized to the sample surface. We show that these surface modes can be excited and detected using experimental techniques such as microwave spin wave resonance spectroscopy or nitrogen-vacancy magnetometry, and propose that the detection of these modes offers a means for the identification of spin triplet superconductivity.

arXiv comment13 pages, 8 figures

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Cited by in corpus (4)

• Stabilizing fluctuating spin-triplet superconductivity in graphene via induced spin-orbit coupling
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• Magnetic exchange interaction in spin-valve with chiral spin-triplet superconductor
• Current-driven motion of magnetic topological defects in ferromagnetic superconductors