Coexistence of magnetism and superconductivity in a new Fe-containing cuprate superconductor (Fe0.5Cu0.5)SrBaYCu2O7+delta

Authors
Ren, ZA Che, GC Xiong, H Li, KQ Yao, YS Zheng, DN Ni, YM Jia, SL Dong, C Chen, H Shen, JL Zhao, ZX
Citation
Za. Ren et al., Coexistence of magnetism and superconductivity in a new Fe-containing cuprate superconductor (Fe0.5Cu0.5)SrBaYCu2O7+delta, SOL ST COMM, 119(10-11), 2001, pp. 579-584
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SOLID STATE COMMUNICATIONS
ISSN journal
00381098 → ACNP
Volume
119
Issue
10-11
Year of publication
2001
Pages
579 - 584
Database
ISI
SICI code
0038-1098(2001)119:10-11<579:COMASI>2.0.ZU;2-Z
Abstract
In this paper, we demonstrate the coexistence of ferromagnetism and superco nductivity in a new cuprate superconductor (Fe0.5Cu0.5)SrBaYCu2O7+delta syn thesized under high pressure. This compound has a 1212-type structure, with tetragonal symmetry, lattice parameters a = 3.844(3), c = 11.53(2) Angstro m and S.G. = P4/mmm. This ferromagnetic superconductor displays a magnetic transition temperature T-M = 150 K and a superconducting transition tempera ture T-C = 77 K. The occurrence of ferromagnetism in this superconductor ca n be explained by Dzyaloshinsky-Moriya (D-M)-type superexchange interaction . (C) 2001 Elsevier Science Ltd. All rights reserved.