C. Timm

Asymmetric Little--Parks Oscillations as a Probe of Coupled Pairing Channels in Surface-Superconducting \texorpdfstring{PtBi$_2$}{PtBi2}

Motivated by the recent discovery of unconventional surface superconductivity in PtBi$_{2}$, we theoretically study its signatures in the Little-Parks oscillations of a narrow ring made from the same material. Using a Ginzburg-Landau model with three coupled pairing channels allowed by the trigonal crystal symmetry, we...