paper

Odd-frequency pairing and Kerr effect in the heavy-fermion superconductor UPt

arXiv:1712.03021 · doi:10.1103/PhysRevB.97.064505

Abstract

We study the emergence of odd-frequency superconducting pairing in UPt. Starting from a tight-binding model accounting for the nonsymmorphic crystal symmetry of UPt and assuming an order parameter in the representation, we demonstrate that odd-frequency pairing arises very generally, as soon as inter-sublattice hopping or spin-orbit coupling is present. We also show that in the low temperature superconducting phase, the presence of a chiral order parameter together with spin-orbit coupling, leads to additional odd-frequency pair amplitudes not present in the or phases. Furthermore, we show that a finite Kerr rotation in the phase is only present if odd- pairing also exists.

8 pages, 2 figures

References in corpus (20)

Cited by in corpus (26)