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INFLUENCE OF OXYGEN DEFICIENCY ON THE THERMOELECTRIC POWER IN SINGLE PHASE YBa2Cu3O7-x SYSTEM

ZHANG QI-RUI RUAN YAO-ZHONG HU XUE-LONG LI LI-PING ZHAO YONG PAN GUO-QIANG CHEN ZU-YAO

INFLUENCE OF OXYGEN DEFICIENCY ON THE THERMOELECTRIC POWER IN SINGLE PHASE YBa2Cu3O7-x SYSTEM

ZHANG QI-RUI, RUAN YAO-ZHONG, HU XUE-LONG, LI LI-PING, ZHAO YONG, PAN GUO-QIANG, CHEN ZU-YAO
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  • Received Date:  02 December 1987
  • Published Online:  06 July 2005

INFLUENCE OF OXYGEN DEFICIENCY ON THE THERMOELECTRIC POWER IN SINGLE PHASE YBa2Cu3O7-x SYSTEM

  • 1. (1)中国高等科学技术中心(世界实验室)理论物理中心; (2)中国科学技术大学物理系; (3)中国科学技术大学应用化学系

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.

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