1306.6159 (Mihail Silaev et al.)

Anomalous vortex viscosity near time reversal symmetry breaking phase
transition    [PDF]

Mihail Silaev, Egor Babaev

We show that under certain conditions multiband superconductors with broken time-reversal symmetry have a new vortex viscosity-generating mechanism. It appears due to the existence of mixed superfluid phase-density mode inside vortex core. This new contribution is dominant near the time reversal symmetry breaking phase transition. The results may be relevant for three band superconductor $Ba_{1-x}K_{x}Fe_2As_2$.

View original: http://arxiv.org/abs/1306.6159