TWO STRUCTURAL PHASE TRANSITIONS IN THE SUPERCONDUCTING MATERIALS Bi1-xPbxSrCaCu2Oy (x=0, 0.2)
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Abstract
The structural transition process of the superconducting phase in Bi1-xPbxSrCaCu2Oy (x=0, 0.2 ) samples has been Investigated at temperatures ranging from -190°C to 800°C by means of electron diffraction . Two structural phase transitions have been found at the temperatures about 310°C and 490°C respectively for the BiSrCa2Oy sample, and about 310°C and 470°C for the Bi0.8 Pb0.2 SrCa2Oy sample. After these transitions a new structural phase forms.
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CHEN Qi, LI Jianqi, YAO Yushu, HUANG Xingming, ZHAO Zhongxian, WANG Wenkui. TWO STRUCTURAL PHASE TRANSITIONS IN THE SUPERCONDUCTING MATERIALS Bi1-xPbxSrCaCu2Oy (x=0, 0.2)[J]. Chin. Phys. Lett., 1989, 6(1): 39-42.
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CHEN Qi, LI Jianqi, YAO Yushu, HUANG Xingming, ZHAO Zhongxian, WANG Wenkui. TWO STRUCTURAL PHASE TRANSITIONS IN THE SUPERCONDUCTING MATERIALS Bi1-xPbxSrCaCu2Oy (x=0, 0.2)[J]. Chin. Phys. Lett., 1989, 6(1): 39-42.
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CHEN Qi, LI Jianqi, YAO Yushu, HUANG Xingming, ZHAO Zhongxian, WANG Wenkui. TWO STRUCTURAL PHASE TRANSITIONS IN THE SUPERCONDUCTING MATERIALS Bi1-xPbxSrCaCu2Oy (x=0, 0.2)[J]. Chin. Phys. Lett., 1989, 6(1): 39-42.
|
CHEN Qi, LI Jianqi, YAO Yushu, HUANG Xingming, ZHAO Zhongxian, WANG Wenkui. TWO STRUCTURAL PHASE TRANSITIONS IN THE SUPERCONDUCTING MATERIALS Bi1-xPbxSrCaCu2Oy (x=0, 0.2)[J]. Chin. Phys. Lett., 1989, 6(1): 39-42.
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