Rout, P. K. ; Budhani, R. C. (2010) Interface superconductivity in La1.48Nd0.4Sr0.12CuO4/La1.84Sr0.16CuO4 bilayers Physical Review B, 82 (2). pp. 4518-4522. ISSN 0163-1829
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Official URL: http://prb.aps.org/abstract/PRB/v82/i2/e024518
Related URL: http://dx.doi.org/10.1103/PhysRevB.82.024518
Abstract
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.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Physical Society. |
| ID Code: | 5505 |
| Deposited On: | 19 Oct 2010 12:05 |
| Last Modified: | 23 May 2011 06:57 |
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