Physics – Condensed Matter – Superconductivity
Scientific paper
2011-11-29
Physical Review B 85, 014518 (2012)
Physics
Condensed Matter
Superconductivity
10 pages, 6 figures
Scientific paper
We calculate the anomalous Hall conductance of superconductors with spin-orbit interaction and with either uniform or local magnetization. In the first case we consider a uniform ferromagnetic ordering in a spin triplet superconductor, while in the second case we consider a conventional s-wave spin singlet superconductor with a magnetic impurity (or a diluted set of magnetic impurities). In the latter case we show that the anomalous Hall conductance can be used to track the quantum phase transition, that occurs when the spin coupling between the impurity and electronic spin density exceeds a certain critical value. In both cases we find that for large spin-orbit coupling the superconductivity is destroyed and the Hall conductance oscillates strongly.
Araujo M. A. N.
Barnas Jozef
Dugaev Vitalii K.
Sacramento Pedro D.
Vieira Vitor Rocha
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