| Growth and transport features of electron-doped superconductor Pr1-xLaCexCuO4-δ thin films |
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| 作者姓名： | 高丽娟 金魁 赵力 吴彬新 李位勇 朱北沂 曹立新 许波 邱详冈 赵柏儒 |
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| 作者单位： | National Laboratory for Superconductivity, Institute ofPhysics and Beijing National Laboratory for Condensed MatterPhysics, Chinese Academy of Sciences, Beijing 100190, China;National Laboratory for Superconductivity, Institute ofPhysics and Beijing National Laboratory for Condensed MatterPhysics, Chinese Academy of Sciences, Beijing 100190, China;National Laboratory for Superconductivity, Institute ofPhysics and Beijing National Laboratory for Condensed MatterPhysics, Chinese Academy of Sciences, Beijing 100190, China;National Laboratory for Superconductivity, Institute ofPhysics and Beijing National Laboratory for Condensed MatterPhysics, Chinese Academy of Sciences, Beijing 100190, China;National Laboratory for Superconductivity, Institute ofPhysics and Beijing National Laboratory for Condensed MatterPhysics, Chinese Academy of Sciences, Beijing 100190, China;National Laboratory for Superconductivity, Institute ofPhysics and Beijing National Laboratory for Condensed MatterPhysics, Chinese Academy of Sciences, Beijing 100190, China;National Laboratory for Superconductivity, Institute ofPhysics and Beijing National Laboratory for Condensed MatterPhysics, Chinese Academy of Sciences, Beijing 100190, China;National Laboratory for Superconductivity, Institute ofPhysics and Beijing National Laboratory for Condensed MatterPhysics, Chinese Academy of Sciences, Beijing 100190, China;National Laboratory for Superconductivity, Institute ofPhysics and Beijing National Laboratory for Condensed MatterPhysics, Chinese Academy of Sciences, Beijing 100190, China;National Laboratory for Superconductivity, Institute ofPhysics and Beijing National Laboratory for Condensed MatterPhysics, Chinese Academy of Sciences, Beijing 100190, China |
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| 基金项目： | Projectsupported by the State Key Program for Basic Research of China(Grant No 2004CB619004-1) and the National Natural ScienceFoundation of China (Grant No 10474121). |
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| 摘 要： | <正>T’-phase electron-doped superconductor Pr1-xLaCexCuO4-δ（PLCCO） thin films are successfully prepared on SrTiO3（100） substrates by using the dc magnetron sputtering method.It is found that the films each have a highly oriented structure along the c-axis.For optimally doped films with x≈0.10,the superconducting transition temperature Tc is 23.5 K,which is similar to that of a single crystal.The quadratic temperature dependence of the resistivity is observed when T > Tc,which can be attributed to the two-dimensional Fermi liquid behaviour.Besides,the optimal conditions for preparing the T’-phase PLCCO thin films are also discussed in detail.
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| 关 键 词： | electron-doped cuprate Pr1-xLaCexCuO4-δ thin film magnetron sputtering |
| 收稿时间： | 2008-10-29 |
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