Thursday, June 27, 2013

1306.6159 (Mihail Silaev et al.)

Anomalous vortex viscosity near time reversal symmetry breaking phase

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 $Ba_{1-x}K_{x}Fe_2As_2$.
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