Influences of Thalliation on the Morphology and Critical Temperature of Tl2Ba2CaCu2O8 Thin Films

雷冲; 赵新杰; 王天生; 彭纬; 虞红春; 陈莺飞; 田永君; 李林

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Influences of Thalliation on the Morphology and Critical Temperature of Tl2Ba2CaCu2O8 Thin Films

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TI2 Ba2 CaCu2Ox (TI-2212) thin films were prepared by the two-step technique. A precursor film was first prepared by the pulsed laser deposition method, and then experienced the incorporation of thalliation in a one-step or two-step annealing process. The experimental results show that the two-step annealing process produces dense and smoothfilms, and that the one-step annealing process produces a high critical temperature film of 101K, but the transition width is wide. Precursor films with homogeneous Ba2Ca1.sCu2.1 Ox composition are essential for producing high-quality T1-2212 films.

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《中国物理快报：英文版》 |2002年第8期|1158-1160|共3页
作者
雷冲; 赵新杰; 王天生; 彭纬; 虞红春; 陈莺飞; 田永君; 李林;
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作者单位

National Laboratory of Superconductivity, Institute of Physics, Chinese Academy of Sciences, Beijing 100080;

Department of Material Science and Chemical Engineering, Yanshan University, Qinhuandao 066004;

National Laboratory of Superconductivity, Institute of Physics, Chinese Academy of Sciences, Beijing 100080;

National Laboratory of Superconductivity, Institute of Physics, Chinese Academy of Sciences, Beijing 100080;

Department of Material Science and Chemical Engineering, Yanshan University, Qinhuandao 066004;

National Laboratory of Superconductivity, Institute of Physics, Chinese Academy of Sciences, Beijing 100080;

National Laboratory of Superconductivity, Institute of Physics, Chinese Academy of Sciences, Beijing 100080;

National Laboratory of Superconductivity, Institute of Physics, Chinese Academy of Sciences, Beijing 100080;

Department of Material Science and Chemical Engineering, Yanshan University, Qinhuandao 066004;

National Laboratory of Superconductivity, Institute of Physics, Chinese Academy of Sciences, Beijing 100080;

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Influences of Thalliation on the Morphology and Critical Temperature of Tl2Ba2CaCu2O8 Thin Films

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