| 氧缺位对单相YBa2Cu3O7-x热电势率的影响 |
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| 引用本文： | 阮耀钟,胡学龙,李立平,赵勇,潘国强,陈祖耀,张其瑞.氧缺位对单相YBa2Cu3O7-x热电势率的影响[J].物理学报,1988,37(9):1560-1563. |
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| 作者姓名： | 阮耀钟 胡学龙 李立平 赵勇 潘国强 陈祖耀 张其瑞 |
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| 作者单位： | (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 |
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| 摘 要： | 研究了氧缺位对单相YBa2Cu3O7-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YBa2Cu3O7-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YBa2Cu3O7-x超导体中存在较强的电-声子相互作用。
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| 收稿时间： | 1987-12-02 |
INFLUENCE OF OXYGEN DEFICIENCY ON THE THERMOELECTRIC POWER IN SINGLE PHASE YBa2Cu3O7-x SYSTEM |
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| RUAN YAO-ZHONG,HU XUE-LONG,LI LI-PING,ZHAO YONG,PAN GUO-QIANG,CHEN ZU-YAO and ZHANG QI-RUI.INFLUENCE OF OXYGEN DEFICIENCY ON THE THERMOELECTRIC POWER IN SINGLE PHASE YBa2Cu3O7-x SYSTEM[J].Acta Physica Sinica,1988,37(9):1560-1563. |
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| Authors: | RUAN YAO-ZHONG HU XUE-LONG LI LI-PING ZHAO YONG PAN GUO-QIANG CHEN ZU-YAO and ZHANG QI-RUI |
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| 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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