Levitation force of a stack of epitaxial YBa2Cu3O7-δ films

被引：0

作者：

Lucke, B. ^{[1
]}

Kurschner, H.-G. ^{[1
]}

Lehndorff, B. ^{[1
]}

Lenkens, M. ^{[1
]}

Piel, H. ^{[1
]}

机构：

[1] Bergische Universitat Wuppertal, Wuppertal, Germany

来源：

Physica C: Superconductivity and its Applications | 1996年 / 259卷 / 1-2期

关键词：

Epitaxial growth - Films - Magnetic properties - Oxide superconductors - Oxides - Stiffness;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The levitation force of three epitaxial YBa2Cu3O7-δ films and a stack made of these films was measured. The films show a very high force density of about 100 Ncm-3 and a large hysteresis of the force versus distance relation. The filmstack provides a levitation force which is nearly as high as the sum of the forces of the single films. The magnetic stiffness of the stack is comparable to that of melt-textured bulk samples and shows a crossover from a B1.5 to a B2 dependence as observed on single films and melt-textured samples. The use of filmstacks for levitation devices may offer several specific advantages.

引用

页码：151 / 156