Proximity effect in a superconductor/exchange-spring-magnet hybrid system

Title
Proximity effect in a superconductor/exchange-spring-magnet hybrid system
Authors
Gu, J.Y.; Kusnadi, J.; You, C.Y.
Keywords
ODD TRIPLET SUPERCONDUCTIVITY, FERROMAGNET STRUCTURES
Issue Date
2010-06
Publisher
AMER PHYSICAL SOC
Abstract
We investigate the proximity effect in a superconductor/ferromagnet (S/F) hybrid system with a noncollinear magnetic configuration. A new structure of an S/exchange-spring (ES) magnet is fabricated, where an ES magnet is employed as an F layer since the magnetization configuration is varied from a collinear state to a noncollinear state by a rotating external magnetic field in a well controllable way. We found that the resistance decreases and the superconducting transition temperature increases, as noncollinearity is introduced starting from a collinear state. We interpret that our experimental observation is due to the contribution of the odd-triplet superconducting condensate that survived in a noncollinear magnetization configuration in the ES magnet.
URI
http://dspace.inha.ac.kr/handle/10505/20135
ISSN
1098-0121
Appears in Collections:
College of Natural Science(자연과학대학) > Physics (물리학) > Journal Papers, Peports(물리학 학술논문, 보고서)
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