LOW-FREQUENCY MAGNETIC MEASUREMENTS ON HIGH-TC SUPERCONDUCTING MATERIALS

被引：6
|
作者：
GOMORY, F
机构：
来源：
THERMOCHIMICA ACTA | 1991年 / 174卷
关键词：
D O I：
10.1016/0040-6031(91)80167-H
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This paper deals with experimental techniques based on analysis of macroscopic magnetic properties of a superconductor placed in a magnetic field varying harmonically with time. Contactless ways of inducing the current into the sample are particularly advantageous in the case of ceramic high-T(c) superconductors. Common features of methods utilizing various instrumentation are discussed, as well as differences between models used to determine the parameters characterizing the superconducting material. The usefulness of low-frequency magnetic measurements is demonstrated on a practical example of polycrystalline YBa2Cu3O(x). Some experimental facts open for theoretical explanation are presented in the last section.
引用
收藏
页码：299 / 320
页数：22
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