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题名: YBa2Cu3O7− δ Ordered Thin Films and Magnetically Aligned Ceramic: Measurement of Anisotropic Thermopower
作者: Liu, Chia-Jyi;Gao, J.;Kaiser, A. B.;Kemp, N. T.;Downes, J. E.;Staines, M. P.
贡献者: 物理學系
关键词: Thermoelectric power;Anisotropic superconductor;Cuprates;Thin films
日期: 1997-05
上传时间: 2012-09-10T06:13:11Z
出版者: Elsevier
摘要: We report measurements of the anisotropic thermopower in the normal state of YBa2Cu3O7 − δ thin films with three different orientations: a-axis perpendicular to the plane of the substrate; c-axis perpendicular; and coherently tilted on a (305) SrTiO3 substrate respectively. We have also measured the thermopower of magnetically aligned YBa2Cu3O7 − δ ceramic samples. The thermopower in the direction of the c-axis is found to be positive and increases as the temperature increases. The thermopower along the b-axis direction has only a small temperature dependence, while the averaged thermopower in the ab-plane in c-axis films decreases as temperature increases. These results are consistent with those made on single crystals.
關聯: Physica C: Superconductivity, 278(3-4): 143-148
显示于类别:[物理學系] 期刊論文


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