摘要
以局域对温差电势率的理论分析Ｂｉ２－ｘＰｂｘＳｒ２ＣａＣｕ２Ｏ８＋δ正常态的温差电势率。结果表明此理论与实验一致。指出高温超导系统作为双成分系统（近局域化的负Ｕ中心子系统和巡游载流子子系统），随温度下降出现了退局域化过程。
A theoretical research of thermoelectric power of Bi 2- x Pb x Sr 2CaCu 2O 8+ δ is done with the local pair thermoelectric power theory,and the results are consistent with the experiment.It is argued that the high T C superconductor,which is considered as a two component system (nearly local negative U center subsystem and itinerant carriers subsystem),goes through a delocalized process when temperature decreases.Below a certain temperature,it tends to become superconducting.
出处
《北京大学学报（自然科学版）》
CAS
CSCD
北大核心
1997年第1期49-52,共4页
Acta Scientiarum Naturalium Universitatis Pekinensis
基金
国家自然科学基金
关键词
温差电势率
高TC
超导体
BPSCCO
铋系
thermoelectric power(TEP)
negative U center model
normal state property of high T C superconductive oxides
local pair model of thermoelectric power
