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26 April 2024 |
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Article overview
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Robustness of spin-triplet paring and the singlet-triplet paring-crossover in superconductor/ferromagnet hybrids | | Shiro Kawabata
; Yasuhiro Asano
; Yukio Tanaka
; Alexander A. Golubov
; | | Date: |
26 Feb 2013 | | Abstract: | We have investigated the proximity effect in superconductor/ferromagnet
junctions in a systematic manner to discuss the relation between the zero
energy peak (ZEP) of the local density of states (LDOS) and spin-triplet
odd-frequency paring. By exactly solving the nonlinear Usadel equations, we
have found that the ZEP is realized in a wide range of geometrical and material
parameters in the case of the noncollinear magnetization. This strongly
suggests the robustness of the ZEP induced by spin-triplet odd-frequency paring
in such systems. We also found that the crossover from singlet to triplet
paring can be detected by measuring the F layer thickness dependence of the ZEP
height. Further, we show how to observe signatures of spin-triplet
odd-frequency paring and the paring crossover by the LDOS measurements. Our
results provide a direct way to experimentally detect signatures of
odd-frequency paring state. | | Source: | arXiv, 1302.6281 | | Services: | Forum | Review | PDF | Favorites | |
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