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Advances in Condensed Matter Physics
Volume 2013 (2013), Article ID 618596, 5 pages
http://dx.doi.org/10.1155/2013/618596
Research Article

Tunneling Conductance in Ferromagnetic Metal/Normal Metal/Spin-Singlet -Wave Ferromagnetic Superconductor Junctions

Department of Physics, Ilam University, Ilam, Iran

Received 2 May 2013; Revised 2 August 2013; Accepted 24 September 2013

Academic Editor: A. Bansil

Copyright © 2013 Hamidreza Emamipour. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In the framework of scattering theory, we study the tunneling conductance in a system including two junctions, ferromagnetic metal/normal metal/ferromagnetic superconductor, where ferromagnetic superconductor is in spin-singlet -wave pairing state. The non-magnetic normal metal is placed in the intermediate layer with the thickness ( ) which varies from 1 nm to 10000 nm. The interesting result which we have found is the existence of oscillations in conductance curves. The period of oscillations is independent of FS and FN exchange field while it depends on . The obtained results can serve as a useful tool to determine the kind of pairing symmetry in ferromagnetic superconductors.