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Interface superconductivity in La1.48Nd0.4Sr0.12CuO4/La1.84Sr0.16CuO4 bilayers

IR@NPL: CSIR-National Physical Laboratory, New Delhi

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Title Interface superconductivity in La1.48Nd0.4Sr0.12CuO4/La1.84Sr0.16CuO4 bilayers
 
Creator Rout, P. K.
Budhani, R. C.
 
Subject Physics
 
Description We identify a distinct superconducting phase at the interface of a La1.48Nd0.4Sr0.12CuO4/La1.84Sr0.16CuO4 epitaxial bilayer system using ac screening measurements. A model based on interdiffusion of quasiparticles and condensate at the interface yields a thickness of ∼25 nm for the interfacial layer. Two-dimensional superconductivity of the interface layer appears to be governed by Kosterlitz-Thouless-Berezinskii transition. A parallel magnetic field suppresses the superconducting transition temperature of this layer with a pair-breaking parameter α varying as H2.
 
Publisher American Physical Society
 
Date 2010-07-23
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://npl.csircentral.net/206/1/173.pdf
Rout, P. K. and Budhani, R. C. (2010) Interface superconductivity in La1.48Nd0.4Sr0.12CuO4/La1.84Sr0.16CuO4 bilayers. Physical Review B , 82 (2). 024518-1-024518-5. ISSN 1098-0121
 
Relation http://link.aps.org/doi/10.1103/PhysRevB.82.024518
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