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Universal features of spin transport and breaking of unitary symmetries

Jacquod, Ph. and Adagideli, İnanç (2013) Universal features of spin transport and breaking of unitary symmetries. Physical Review B: Condensed Matter and Materials Physics, 88 (4). ISSN 1098-0121

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Official URL: http://dx.doi.org/10.1103/PhysRevB.88.041305

Abstract

When time-reversal symmetry is broken, quantum coherent systems with and without spin rotational symmetry exhibit the same universal behavior in their electric transport properties. We show that spin transport discriminates between these two cases. In systems with large charge conductance, spin transport is essentially insensitive to the breaking of time-reversal symmetry, while in the opposite limit of a single exit transport channel, spin currents vanish identically in the presence of time-reversal symmetry but can be turned on by breaking it with an orbital magnetic field.

Item Type:Article
Additional Information:Article Number: 041305
Subjects:Q Science > QC Physics
Q Science > QC Physics > QC176-176.9 Solids. Solid state physics
ID Code:21749
Deposited By:İnanç Adagideli
Deposited On:10 Oct 2013 11:13
Last Modified:10 Oct 2013 11:13

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