Direct Observation of Vortex Structure in a High Tc YBa2Cu3O7−y Thin Film by Bitter Decoration Method

被引:0
作者
Akira Sugimoto
Tetsuji Yamaguchi
Ienari Iguchi
机构
[1] Tokyo Institute of Technology,Department of Applied Physics and CREST
来源
Journal of Low Temperature Physics | 1999年 / 117卷
关键词
Magnetic Field; Vortex; Thin Film; High Resolution; Optical Microscope;
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暂无
中图分类号
学科分类号
摘要
The Bitter decoration technique is one of the most powerful techniques to study the vortex structure of superconductor. We report the observation of vortex structure in a high TcYBa2Cu3O7−y(YBCO) thin film by Bitter decoration method. The image of vortex structure was monitored by SEM, AFM and high resolution optical microscope. For magnetic field about 4-6mT,a vortex structure is seen. The vortex image varied with changing magnetic field. As compared with the vortex image of a Bi2Sr2CaCu2O8+ysingle crystal, the observed image appeared to be more randomly distributed.
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页码:1347 / 1351
页数:4
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