Distinguish Different Factors Dominating Superconductivity in Y-Doped Bi2 Sr2 CaCu2 Oy
ZHANG Han, WU Ke, FENG Qing-rong, ZHU Xing, FENG Sun-qi, GAN Zi-zhao
Department of Physics, Peking University, Beijing 100871
Distinguish Different Factors Dominating Superconductivity in Y-Doped Bi2 Sr2 CaCu2 Oy
ZHANG Han;WU Ke;FENG Qing-rong;ZHU Xing;FENG Sun-qi;GAN Zi-zhao
Department of Physics, Peking University, Beijing 100871
关键词 ：
74.25.-q ,
74.72.-h ,
61.10.-i
Abstract ： We observed in Y-doped Bi2 Sr2 CaCu2 Oy superconductors an interesting phenomenon, the Tc (onset) of the Y-doped samples is higher, but the Tc (end) is lower than that of Y-free samples. After annealing in N2 atmosphere, the Tc (end) is increased, but the Tc (onset) is hardly changed. After careful studying, by structure analysis, x-ray photoelectron spectroscopy, R - T relationship measurement, and Hall effect, we successfully distinguish the different factors that dominate the superconductivity. of which one is carrier concentration, others may possibly be structure change and charges redistribution.
Key words ：
74.25.-q
74.72.-h
61.10.-i
出版日期: 1996-02-01
引用本文:
ZHANG Han;WU Ke;FENG Qing-rong;ZHU Xing;FENG Sun-qi;GAN Zi-zhao. Distinguish Different Factors Dominating Superconductivity in Y-Doped Bi2 Sr2 CaCu2 Oy [J]. 中国物理快报, 1996, 13(2): 133-136.
2 Sr2 CaCu2 Oy . Chin. Phys. Lett., 1996, 13(2): 133-136.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1996/V13/I2/133
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