Interface superconductivity inLa1.48Nd0.4Sr0.12CuO4/La1.84Sr0.16CuO4bilayers

2010/07/23 by P. K. Rout, R. C. Budhani · 1 citation
Chemistry · Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Bilayer #Chemistry #Condensed matter physics #Crystallography #Epitaxy #Interface (matter) #Layer (electronics) #Magnetic and transport properties of perovskites and related materials #Materials science #Membrane #Molecule #Nanotechnology #Phase (matter) #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Quasiparticle #Superconductivity #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevb.82.024518

published as Phys. Rev. B 82, 024518 (2010)

openalex publication_date 2010/07/23 · arxiv created 2012/08/16 · arxiv updated 2012/08/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We identify a distinct superconducting phase at the interface of a La_1.48Nd_0.4Sr_0.12CuO₄/La_1.84Sr_0.16CuO₄ epitaxial bilayer system using ac screening measurements. A model based on interdiffusion of quasiparticles and condensate at the interface yields a thickness of \ensuremath∼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 \ensuremathα varying as H².

Citations

• Enhanced Superconductivity in Superlattices of High-TcCuprates
• The critical properties of the two-dimensional xy model
• Interlayerc-axis transport in the normal state of cuprates
• Ordering, metastability and phase transitions in two-dimensional systems

Cited by

• Electronic reconstruction and enhanced superconductivity at La 1.6−x Nd 0.4 Sr x CuO 4 /La 1.55 Sr 0.45 CuO 4 bilayer interface