MAGNETIC FLUX-DRAG FORCES FOR HIGH-TC SUPERCONDUCTORS

被引：4

作者：

CHAN, WC

CHUNG, CJ

机构：

[1] Physics Department, Tamkang University, Taipei

来源：

JOURNAL OF APPLIED PHYSICS | 1993年 / 73卷 / 10期

关键词：

D O I：

10.1063/1.353781

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

According to the high-T(c) superconducting bearing experiments, the magnetic flux-drag torque due to the asymmetric magnetic field distribution of the magnet cannot be neglected. A homemade vertical torsion balance has been constructed to directly measure the flux-drag torque acting on a yttrium-barium-copper-oxide (YBCO) superconducting sample due to the off-axis circular motion of a small permanent magnet. It is found that these flux-drag torques, unlike the levitation forces, have no obvious hysteretic effect. Also, these flux-drag torques are larger for a melt-powder-melt-growth YBCO superconducting sample than for a ceramic YBCO sample.

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页码：5095 / 5097

页数：3

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