晶格振动、载流子与高温超导电性的关系  

RELATION AMONG THE LATTICE VIBRATIONS, CARRIERS AND HIGH-T_c SUPERCONDUCTIVITY

作　　者：曾文生[1] 张光寅[2] 

机构地区：[1]中山大学物理系,广州510275 [2]南开大学物理系,天津300071

出　　处：《物理学报》1993年第2期205-213,共9页Acta Physica Sinica

基　　金：国家超导技术联合研究开发中心资助的课题

摘　　要：系统地从红外光谱的结果论述了晶格振动、载流子与高温超导电性的关系。指出,在高温超导体中,载流子对晶格振动的作用不是屏蔽作用,而是两者之间的局域强耦合相互作用,这种局域的耦合不同于普通的电声子耦合。在此基础上,通过理论和实验研究,论述了局域耦合强度及其整体效应与超导电性的关系。The relation among the lattice vibrations, carriers and high-Tc superconductivity is discussed in detail. We propose that there are strong local coupling between carriers and rhe lattice vibrations rather than the screen effect between them. Basing on the experimental results and the theoretical analysis, we found that the relation between superconductivity and the strength of the local coupling and its overall effect.

关 键 词：晶格振动 载流子 高温超导性 

分 类 号：O511.1[理学—低温物理]