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Structure and Superconductivity of the Y4Ba8Cu12O27 Nanosuperconductor
Authors:Wu Ming Chen   S. S. Jiang   Y. C. Guo   L. Y. Li   K. Shen  S. X. Dou
Affiliation:(1) Department of Physics and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, P.R. China;(2) Center for Superconducting and Electronic Materials, University of Wollongong, Wollongong, New South Wales, 2522, Australia
Abstract:A nanosuperconductor was prepared and characterized in the present work. The nanosuperconductor consisted of nanocrystals with superconducting transition temperature, T c, of 88 K. Dimension of the nanocrystals is dozens nm in diameter and hundreds nm in length. The compound of the nanocrystals has a formula of Y4Ba8Cu12O27. The structure of the nanocrystals was found to be an orthorhombic perovskite, and the lattice constants were determined as a = 7.634 Å, b = 7.758 Å, and c = 11.654 Å, respectively.
Keywords:Nanocrystals  nanosuperconductor  structure  superconductivity
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