Hall Coefficient of High-Tc Superconductors in a
Modified Bipolaron Model
ZHANG Shuang, ZHANG Li-Yuan
Department of Physics, Peking University, Beijing 100871
Hall Coefficient of High-Tc Superconductors in a
Modified Bipolaron Model
ZHANG Shuang;ZHANG Li-Yuan
Department of Physics, Peking University, Beijing 100871
关键词 ：
74.25.Fy ,
74.20.Mn ,
74.72.-h
Abstract ： Using non-rigid bipolaron model modified with the correction of pseudogap effect, we have studied the temperature (T) dependence of the Hall coefficient (RH ) in the normal state of several typical high-Tc superconductors (e.g. YBa2 Cu3 O7-δ ). The results are in agreement with experiments. It is suggested that the positive maximum in the RH -T diagram corresponds to a point near the bottom of the pseudogap. We have also found that for these high-Tc superconductors, W-T can be scaled into a single universal function form, where W is the bandwidth of the non-rigid bipolaron system.
Key words ：
74.25.Fy
74.20.Mn
74.72.-h
出版日期: 2001-03-01
引用本文:
ZHANG Shuang;ZHANG Li-Yuan. Hall Coefficient of High-Tc Superconductors in a
Modified Bipolaron Model[J]. 中国物理快报, 2001, 18(3): 429-431.
c Superconductors in a
Modified Bipolaron Model. Chin. Phys. Lett., 2001, 18(3): 429-431.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2001/V18/I3/429
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