Suppression of magnetic relaxation in a high-temperature superconductor placed near a ferromagnet

被引：0
|
作者：
B. M. Smolyak
G. V. Ermakov
机构：
[1] Russian Academy of Sciences,Institute of Thermal Physics, Ural Branch
来源：
Technical Physics Letters | 2010年 / 36卷
关键词：
Vortex; Lorentz Force; Technical Physic Letter; Magnetic Relaxation; Levitation Force;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The phenomenon of the suppression of magnetic relaxation in a high-temperature superconductor (HTSC) with trapped magnetic flux has been observed when the superconducting sample approached a ferromagnet. It is suggested that the ferromagnet is magnetized in the magnetic field of the sample and, in turn, induces currents in the superconductor, which circulate in a direction opposite to that of the trapped flux current. As a result, the magnetic structure becomes stable with respect to the magnetic flux creep because oppositely directed Lorentz forces can act upon different regions of vortices.
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页码：461 / 463
页数：2
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