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THE STRUCTURAL PHASE TRANSITION NEAR 210 K OF Bi-BASED SUPERCONDUCTORS

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【Author】 HE YU-SHENG XIANG JIONG WANG XIN(Physics Department, Tsinghua University, Beijing 100084, PRC) HE AI-SHENG(Physics Division, North University of Technology, Beijing 100041, PRC) ZHANG JIN-CANG CHANG FANG-GAO(Physics Department, Henan Normal University, Xinxiang 453002, PRC)

【机构】 Physics Department； Tsinghua University； Beijing 100084； PRC； Physics Division； North University of Technology； Beijing 100041； Henan Normal University； Xinxiang 453002； PRC；

【摘要】 <正> Recently, systematic investigations on Bi-based superconductors were carried out by means of ultrasonic measurements, thermal analysis, specific heat experiments and X-ray diffraction measurements. It was found for the first time that a possible structural phase transition occurs near 210 K in these systems. All the samples used were of single phase and更多还原

【关键词】 Bi-based superconductors； ultrasonic measurements； specific heat experiments； structural phase transition.；
【Key words】 Bi-based superconductors； ultrasonic measurements； specific heat experiments； structural phase transition.；

【文献出处】 Chinese Science Bulletin ,科学通报(英文版) , 编辑部邮箱 ,1990年17期

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