节点文献

氧缺位对单相YBa₂Cu₃O_7-x热电势率的影响

INFLUENCE OF OXYGEN DEFICIENCY ON THE THERMOELECTRIC POWER IN SINGLE PHASE YBa₂Cu₃O_7-x SYSTEM

推荐 CAJ下载
PDF下载
不支持迅雷等下载工具，请取消加速工具后下载。

【Author】 RUAN YAO-ZHONg HU XUE-LONG LI LI-PING ZHAO YONG PAN GUO-QIANG CHEN ZU-YAO* ZHANG QI-RUI(Department of Physics, University of Science and Technology of China, Hefei) Department of Applied Chemistry, University of Science and Technology of China, Hefei. Also at: Center of Theoretical Physics CCAST (World Laboratory), Beijing, PR China.

【机构】中国科学技术大学物理系；中国科学技术大学应用化学系；中国高等科学技术中心(世界实验室)理论物理中心；

【摘要】研究了氧缺位对单相YBa₂Cu₃O_7-x体系超导电性及热电势率的影响。结果表明,超导转变温度随氧缺位的增加而下降,热电势率随氧缺位的增加而增大。由实验结果推断,单相YBa₂Cu₃O_7-x的多数载流子为空穴。存在较大的声子曳引热电势表明。在YBa₂Cu₃O_7-x超导体中存在较强的电-声子相互作用。更多还原

【Abstract】 The influence of oxygen deficiency on the superconductivity and the thermoelectric power in single phase YBa2Cu3O7-x system was studied. The results show that the superconducting transition temperature decreases, and the magnitude of the thermoelectric power increases with the amount of oxygen vacancies. From the experimental results we suggest that holes conduction is predominant in single phase YBa2Cu3O7-x system, the relatively large phonon-drag thermopower indicates that there exists strong electron-phonon interaction in YBa2Cu3O7-x superconductors更多还原