Critical current density and flux pinning in Y1-xHoxBa2Cu3O7-delta epitaxial films

被引:0
作者
Peng, ZS
Wan, CR
Jiang, CY
Hao, JM
Yin, B
Zhao, ZX
Hua, ZQ
Yang, BC
机构
[1] TIANJING ELECT MAT RES INST, TIANJIN 300192, PEOPLES R CHINA
[2] CHINESE ACAD SCI, INST PHYS, BEIJING 100080, PEOPLES R CHINA
[3] GEN RES INST NONFERROUS MET, BEIJING 100083, PEOPLES R CHINA
来源
JOURNAL OF SUPERCONDUCTIVITY | 1996年 / 9卷 / 06期
关键词
critical current; flux pinning; Y1-xHoxBa2Cu3O7-delta;
D O I
10.1007/BF00728238
中图分类号
O59 [应用物理学];
学科分类号
摘要
The critical current density J(c) of Y1-xHoxBa2Cu3O7-delta (YHBCO) epitaxial thin films with x=0, 0.2, 0.4, 0.7 at various temperatures and magnetic fields has been measured magnetically. The J(c) and flux pinning density Fp values are significantly enhanced with the Ho substitute amount x with the optimal effect achieved at Ho concentration around x = 0.4 in the entire measured temperature (30-77 K) and magnetic field (0-3 T) ranges. X-ray diffraction patterns have shown that the greater the lattice deformation, the higher the J(c) of the films.
引用
收藏
页码:589 / 592
页数:4
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