DC FIELD TUNING OF INTERGRANULAR AND INTRAGRANULAR EFFECTS IN Y-BA-CU-O CERAMICS

被引：4

作者：

ANGUREL, LA

LERA, F

RILLO, C

NAVARRO, R

机构：

[1] Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, Centro Politécnico Superior de Ingenieros, Zaragoza, E-50015

来源：

CRYOGENICS | 1993年 / 33卷 / 03期

关键词：

HIGH TC SUPERCONDUCTORS; Y-BA-CU-O; CRITICAL STATE;

D O I：

10.1016/0011-2275(93)90052-P

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The validity of critical state models (CSM) for the description of Y-Ba-Cu-0 high temperature superconducting ceramics is checked at temperatures above that of liquid nitrogen. Isothermal magnetic a.c. susceptibility components at different excitation fields and in the presence of a d.c. tuning field, d.c. magnetization and critical current transport measurements are reported. Full analysis of all these data with the same set of CSM parameters leads to the derivation of the most adequate model for intergranular behaviour.

引用

页码：314 / 320

页数：7

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