Ion-beam induced metal insulator transition in YBCO films

被引：0
|
作者：
Lesueur, J. [1 ]
Dumoulin, L. [1 ]
Quillet, S. [1 ]
Radcliffe, J. [1 ]
机构：
[1] C.S.N.S.M, Orsay, France
来源：
Journal of Alloys and Compounds | 1993年 / 195卷 / 1-2期
关键词：
Barium compounds - Copper compounds - Copper oxides - High temperature superconductors - Ion beams - Radiation effects - Thin films - Yttrium compounds;
D O I：
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中图分类号：
学科分类号：
摘要：
We have performed light ion irradiation experiments on high quality YBCO thin films, and studied the metal insulator transition induced by disorder. At small damage level the observed decrease of Tc is compatible with a depairing process. For disorder of about 0.04 dpa (displacement per atom), a localization transition is observed, leading to a 3D Variable Range Hopping process for the conductivity. We will discuss the connection between these two phenomena, and the specific role of intrinsic disorder vs extrinsic one.
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页码：527 / 530
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