FLUX-LINE MATCHING EFFECTS IN YBA2CU3O7-X THIN-FILMS

被引:28
作者
HUNNEKES, C
BOHN, HG
SCHILLING, W
SCHULZ, H
机构
[1] Institut für Festkörperforschung, Forschungszentrum Jülich
关键词
D O I
10.1103/PhysRevLett.72.2271
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present internal friction (IF) measurements in magnetic fields up to 1.6 T of epitaxial YBa2Cu3O7-x, thin films with different thicknesses. Measurements at constant temperature and varying field exhibit peaks in the IF at particular values of the field for H perpendicular to the crystallographic c axis. Assuming a rectangular flux line arrangement and taking the anisotropy of YBa2Cu3O7-x into account the positions of the peaks coincide with fields where the distance in c direction of the flux line rows becomes an integral fraction of the sample thickness. This matching effect is valid for different film thicknesses and seems to be independent of temperature.
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页码:2271 / 2273
页数:3
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