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Coexistence of magnetism and superconductivity in a new Fe-containing cuprate superconductor (Fe0.5Cu0.5)SrBaYCu2O7+delta
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机译：Coexistence of magnetism and superconductivity in a new Fe-containing cuprate superconductor (Fe0.5Cu0.5)SrBaYCu2O7+delta
In this paper, we demonstrate the coexistence of ferromagnetism and superconductivity in a new cuprate superconductor (Fe0.5Cu0.5)SrBaYCu2O7+delta synthesized under high pressure. This compound has a 1212-type structure, with tetragonal symmetry, lattice parameters a = 3.844(3), c = 11.53(2) Angstrom and S.G. = P4/mmm. This ferromagnetic superconductor displays a magnetic transition temperature T-M = 150 K and a superconducting transition temperature T-C = 77 K. The occurrence of ferromagnetism in this superconductor can be explained by Dzyaloshinsky-Moriya (D-M)-type superexchange interaction. (C) 2001 Elsevier Science Ltd. All rights reserved. References: 16
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