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Preparation of superconducting HgBa(2)CaCu(2)Ox and Hg(0.8)Bi(0.2)Ba(2)CaCu(2)Ox films by means of annealing of mercury-free precursor films

By JD Guo, GC Xiong, DP Yu, QR Feng, XL Xu, GJ Lian, K Xiu and ZH Hu

Abstract

HgBa(2)CaCu(2)Ox films and Hg(0.8)Bi(0.2)Ba(2)CaCu(2)Ox films were prepared by means of annealing of mercury-free precursor films with the Hg-1212 bulks in an evacuated quartz tube. The mercury-free precursor films were deposited by laser ablation on (100) SrTiO3 substrates. The annealed films exhibited the (OOn) oriented X-ray diffraction pattern of the Hg-1212. The superconducting transition temperatures, T-c(p=0), are 121 K and 100 K respectively.Physics, AppliedSCI(E)EI

Topics: THIN-FILMS, ORIENTED HGBA2CACU2O6+DELTA, TRANSITION
Year: 1997
DOI identifier: 10.1016/S0921-4534(97)00463-2
OAI identifier: oai:localhost:20.500.11897/149363
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