Magnetic torque in the vortex state of Bi2Sr2CaCu2O8+δ single crystal below 30 K

被引：0
|
作者：
Maeda, K [1 ]
Suzuki, T [1 ]
Kim, M [1 ]
Fujii, Y [1 ]
机构：
[1] Okayama Univ Sci, Dept Appl Phys, Okayama 7000005, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2003年 / 388卷
关键词：
Bi2Sr2CaCu2O8+delta single crystal; magnetic torque; intrinsic pinning; flux pinning;
D O I：
10.1016/S0921-4534(02)02643-6
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The magnetic torque originating from the intrinsic pinning parallel to the CuO2 plane and the flux pinning perpendicular to the CuO2 plane has been measured as a function of the angle theta between the CuO2 plane and the applied magnetic field. The average length of path for fluxoids running parallel to the CuO2 plane (Josephson vortex) was calculated from the measurements as a function of theta (0degrees less than or equal to theta less than or equal to 90degrees) at 4.4, 6.2 and 12 K. The amount of flux pinned perpendicular to the CuO2 plane showed saturation at about 0.5 T. The depinning of the flux pinned perpendicular to the CuO2 plane at 4.4 K was studied as a function of the temperature and the applied magnetic field parallel to the CuO2 plane. (C) 2003 Elsevier Science B.V. All rights reserved.
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页码：769 / 770
页数：2
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