YBA2CU3O7-DELTA LOW FIELD DIAMAGNETIC PROPERTIES - A MULTIHARMONIC ANALYSIS

被引：17

作者：

NAVARRO, R

LERA, F

RILLO, C

BARTOLOME, J

机构：

[1] Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza

来源：

PHYSICA C | 1990年 / 167卷 / 5-6期

关键词：

D O I：

10.1016/0921-4534(90)90673-3

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Multiharmonic analysis of the magnetic AC susceptibility of a YBa2Cu3O7-δ powder sintered sample has been performed, measuring nine in-phase, χn′ (T), and out-of-phase, χn″ (T), components. Measurements at zero and low bias DC field, Ho, have been performed. For even n, both χn′ (T) and χ″n (T) are very sensetive to Ho and become zero at real zero field. Odd harmonics (n≥3) strongly depend on Ho and on the weak-link nature. Furthermore, from χn′ and χn″ (T) AC hysteresis loops have been derived and analyzed. The applicability of available theoretical models in the description of the harmonic components has been analyzed. © 1990.

引用

页码：549 / 559

页数：11