Pulse Heating and Negative Magnetic Relaxation on Bulk HTS Annuli

被引：5

作者：

Korotkov, V. S. ^{[1
]}

Krasnoperov, E. P. ^{[1
,2
]}

Kartamyshev, A. A. ^{[1
]}

机构：

[1] Kurchatov Inst, Res Ctr, Moscow 123182, Russia

[2] MIPT, Dolgoprudnyi 141700, Russia

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2015年 / 28卷 / 09期

关键词：

Bulk superconductor; Pulsed-field magnetization; Negative relaxation; Temperature measurements;

D O I：

10.1007/s10948-015-3116-4

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Negative magnetic relaxation (S < 0) can be observed in pulsed field magnetization of superconducting single-domain annuli (rings of rectangular cross section) under certain conditions. The radial distributions of the local temperature and of the trapped magnetic field were investigated when the negative relaxation is realized. The relaxation rates calculated from these data are in a good agreement with the observed values. Numerical calculations show that the negative relaxation is realized due to the radial temperature gradient.

引用

页码：2815 / 2819

页数：5

共 13 条

[1]

[Anonymous], HEAT TRANSFER

[2] Simulation of temperature and magnetic field distribution in superconducting bulk during pulsed field magnetization [J].