Josephson effect between triplet superconductors through a ferromagnetic barrier of finite width

Details Josephson effect between triplet superconductors through a ferromagnetic barrier of finite width Josephson effect between triplet superconductors through a ferromagnetic barrier of finite width

2011-09-24

arxiv.org/abs/1109.5238v2

J. Phys.: Condens. Matter 24 (2012) 045701

Physics

Condensed Matter

Superconductivity

Scientific paper

10.1088/0953-8984/24/4/045701

Charge and spin transport in a junction involving two triplet superconductors and a ferromagnetic barrier are studied. We use Bogoliubov-de Gennes wavefunctions to construct the Green's function, from which we obtain the Josephson currents in terms of the Andreev reflection coefficients. We focus on the consequences of a finite barrier width for the occurrence of 0-\pi transitions and for the spin currents, and examine the appropriateness of the common \delta-function approximation for the tunneling region.

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