Decay of trapped magnetic field in HTS bulk caused by application of AC magnetic field

被引：36
|
作者：
Yamagishi, K
Ogawa, J
Tsukamoto, O
Murakami, M
Tomita, M
机构：
[1] Yokohama Natl Univ, Fac Engn, Hodogaya Ku, Yokohama, Kanagawa 2408501, Japan
[2] ISTEC, Superconduct Res Lab, Minato Ku, Tokyo 1050023, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2003年 / 392卷
关键词：
HTS bulk; trapped magnetic field; AC loss; temperature rise;
D O I：
10.1016/S0921-4534(03)00988-2
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In our previous work it was observed that trapped magnetic field in a YBCO bulk was decayed and even erased by application of AC external field whose amplitude was much smaller than the peak value of the trapped magnetic field. To study a reason for decay we investigated temperature rise of a YBCO bulk subject to the AC external magnetic field by use of thermocouples. A case was observed that the temperature rise of the bulk reached almost the critical temperature. This result shows that the decay of the trapped magnetic field was related to the temperature rise due to AC losses in the bulk. (C) 2003 Elsevier B.V. All rights reserved.
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页码：659 / 663
页数：5
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