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Superconducting gap induced barrier enhancement in a BiFeO3-based heterostructure.

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Superconducting gap induced barrier enhancement in a BiFeO3-based heterostructure.

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Title: Superconducting gap induced barrier enhancement in a BiFeO3-based heterostructure.
Author: Lu, C. L. Xing, Guozhong.; Xing, Guichuan.; Li, Mingjie.; Sie, Edbert Jarvis.; Wang, Dandan.; Sulistio, Arief.; Ye, Quan Lin.; Huan, Alfred Cheng Hon.; Wu, Tom.; Sum, Tze Chien.; Wang, Y.; You, L.; Zhou, X.; Xing, Guozhong.; Chia, Elbert E. M.; Panagopoulos, Christos.; Chen, L.; Liu, J. M.; Wang, J.; Wu, Tom.; Peng, Haiyang.
Copyright year: 2010
Abstract: We report the synthesis and characterization of an epitaxial heterostructure composed of multiferroic BiFeO3 and superconducting YBa2Cu3O7−δ thin films grown on (001) SrTiO3. Both the superconductivity of YBa2Cu3O7−δ and the erroelectricity of BiFeO3 are retained in the heterostructure. Current density-electric field characteristics measured from 30 to 170 K suggest a Schottky-emission-like transport at the BiFeO3 /YBa2Cu3O7−δ interface. Furthermore, the temperature dependence of the barrier height shows an anomalous enhancement at TC, indicating an intimate coupling between the multiferroic and the superconducting layers.
Subject: DRNTU::Engineering::Materials::Magnetic materials.
Type: Journal Article
Series/ Journal Title: Applied physics letters
School: School of Materials Science and Engineering
Rights: © 2010 American Institute of Physics. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The paper can be found at the following DOI: http://dx.doi.org/10.1063/1.3530446. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Version: Published version

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