| Original Articles |
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Doping Effect on Superconducting Transition of Ba-K-Bi-O System |
| ZHAO Liangzhong;ZHANG Jinbiao;WANG Weihua;YIN Bo*;LI Jingwei*;ZHAO Zhongxian * |
| Institute of Chemistry, Academia Sinica, Beijing 100080
*Institute of Physics, Academia Sinica, Beijing 100080 |
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| Cite this article: |
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ZHAO Liangzhong, ZHANG Jinbiao, WANG Weihua et al 1994 Chin. Phys. Lett. 11 373-375 |
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Abstract Chemical doping or substitutions were carried out in both the Ba site and Bi site in Ba-K-Bi-O superconductor. The large single crystals of Ba-K-M-Bi-O (M=Ca, Eu, In and T1) were prepared by using the electrocrystallization method. The resulting crystalline materials were characterized by x-ray photoelectron spectroscopy and magnetic method. The results show that partial substitutions of Ca or Eu in the Ba site suppress Tc more drastically than that of TI in the Bi site. All the present chemical substitutions result in a decrease in Tc.
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| Keywords:
74.62.-c
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Published: 01 June 1994
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| PACS: |
74.62.-c
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(Transition temperature variations, phase diagrams)
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