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Coherent quantum transport in ferromagnet/ s ± ‐wave superconductor/ferromagnet structures
Author(s) -
Zhao X. L.,
Tao Y. C.
Publication year - 2011
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201084188
Subject(s) - ferromagnetism , condensed matter physics , antiferromagnetism , superconductivity , andreev reflection , physics , quantum , spin polarization , polarization (electrochemistry) , quantum mechanics , electron , chemistry
We extend the Blonder–Tinkham–Klapwijk approach to studying the effects of barrier strength and spin polarization on coherent spin‐polarized transport in ferromagnet (FM)/iron‐pnictide‐superconductor (SC)/FM structures with s ± ‐paring for the SC. It is demonstrated that the effects of barrier strength and spin polarization on the particular features of oscillations of all the reflection and transmission probabilities, and differential conductances with energy in ferromagnetic and antiferromagnetic alignments of the magnetizations of the two FMs are different, which are also different from those for the s ++ model.