Structural Anomalies of Bi-2223 Phase in the Temperature Range of 8-305K  

作　　者：DONG Cheng WU Fei CHEN Hong CHE Guangcan LI Jingwei FAN Yongxin ZHAO Zhongxian 

机构地区：[1]National Laboratory for Superconductivity,Institute of Physics,Academia Sinica,Beijing 100080

出　　处：《Chinese Physics Letters》1994年第8期494-497,共4页中国物理快报（英文版）

摘　　要：A nearly single-phased Bi-2223 sample with T_(c) 108K was studied by low-temperature powder x-ray diffraction.Several discontinuous changes of lattice parameters are observed around 245,160,125,100 and 20K.The most pronounced anomalies occur dose to the superconducting transition temperature.Our observation indicates that electron-lattice interaction is quite strong near T_(c).

关 键 词：TEMPERATURE DIFFRACTION DISCONTINUOUS 

分 类 号：TM2[一般工业技术—材料科学与工程]