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Title: Anomalous Hall effect in superconductors with spin-orbit interaction
Authors: Sacramento, Pedro
Araújo, Miguel
Vieira, Vítor
Dugaev, Vitalii
Barnas, Josef
Keywords: supercondutividade
interacção de spin-órbita
efeito de Hall
Issue Date: 23-Jan-2012
Publisher: Physical Review B
Citation: Phys. Rev. B 85, 014518 (2012)
Abstract: We calculate the anomalous Hall conductance of superconductors with spin-orbit (SO) interaction and with either uniform or local magnetization. In the first case, we consider a uniform ferromagnetic ordering in a spin-triplet superconductor, whereas, 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 the electronic spin density exceeds a certain critical value. In both cases, we find that, for large SO coupling, the superconductivity is destroyed and the Hall conductance oscillates strongly.
Type: article
Appears in Collections:FIS - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

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