Influence of the real shape of a sample on the pinning induced magnetostriction
Influence of the real shape of a sample on the pinning induced magnetostriction
复制标题
DOI：
10.1063/1.368555
复制
发表时间：
1998-10
影响因子：
3.2
通讯作者：
A. Nabiałek;H. Szymczak;V. Sirenko;A. D’yachenko
中科院分区：
文献类型：
--
作者：
A. Nabiałek;H. Szymczak;V. Sirenko;A. D’yachenko
计算了各向同性超导体中不同形状样品的钉扎感生磁致伸缩。我们分析了一些特殊的形状，其解决方案可以找到解析。研究了有限平板的磁致伸缩问题。为了确定退磁效应的影响，计算了无限长薄带的钉扎感生磁致伸缩。一个简单的近似公式可以用于分析钉扎力引起的磁致伸缩的特殊情况。在这个公式中，样品的磁致伸缩与其磁化强度直接相关。我们还提出了一些高温超导体的实验结果进行了分析，在框架的发展理论。
The pinning induced magnetostriction in an isotropic superconductor was calculated for different sample shapes. We analyzed some special shapes for which the solution can be found analytically. The magnetostriction of a finite slab was considered. In order to determine the influence of demagnetization effects, the pinning induced magnetostriction of an infinitely long and thin strip was calculated. A simple, approximate formula can be used in particular cases to analyze the magnetostriction induced by pinning forces. In this formula the magnetostriction of a sample is connected directly with its magnetization. We also present some experimental results on high temperature superconductors which are analyzed in frames of the developed theory.