Observation of a spin-singlet proximity effect in a superconductor/ferromagnet interface
SCIE
SCOPUS
KCI
- Title
- Observation of a spin-singlet proximity effect in a superconductor/ferromagnet interface
- Authors
- Ki, DK; Lee, HJ
- Date Issued
- 2008-02
- Publisher
- KOREAN PHYSICAL SOC
- Abstract
- Since a spin-singlet superconductor (SC) and a ferromagnet (FM) have ground states with conflicting spin configurations, the superconducting order in a FM in proximity contact with a SC is bound to be suppressed. However, a rather long-range proximity effect has been observed in a metallic FM of a SC/FM junction. Recently, the possible formation of long-range spin-triplet pairing at the SC/FM interface has also been claimed. In this study, we examined the superconducting proximity effect in a simple spin-singlet SC/FM interfacial structure, where the formation of long-range spin-triplet pairing was highly unlikely. We suggest that the finite resistance reduction of the FM segment observed in this study due to the proximity contact to a SC is explicable by the ordinary short-range spin-singlet proximity effect combined with a current redistribution through the SC overlay due to the Andreev reflection at the interface of the unpolarized electrons in the FM.
- Keywords
- proximity effect; superconductor/ferromagnet interface; coherence length; triplet superconductivity
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/22916
- DOI
- 10.3938/jkps.52.386
- ISSN
- 0374-4884
- Article Type
- Article
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, vol. 52, no. 2, page. 386 - 390, 2008-02
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.