IRREVERSIBILITY LINE AND ANISOTROPY OF MAGNETIC MELT-TEXTURED Y1BA2CU3O7-DELTA STUDIED BY AC SUSCEPTIBILITY

被引：14

作者：

LOEGEL, B ^{[1
]}

MEHDAOUI, A ^{[1
]}

BOLMONT, D ^{[1
]}

DANESI, P ^{[1
]}

BOURGAULT, D ^{[1
]}

TOURNIER, R ^{[1
]}

机构：

[1] CNRS,CTR RECH TRES BASSES TEMP,F-38042 GRENOBLE 9,FRANCE

来源：

PHYSICA C | 1993年 / 210卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(93)90987-2

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Magnetically melt textured YBa2Cu3O7-delta samples have been studied by AC initial susceptibility measurements in the low field limit. The critical dynamic fields h(c)* and the relative position of the irreversibility line and of the critical line show that magnetic melt texturing leads to the creation of strong pinning sites. The anisotroPY factor A is in agreement with the value obtained from magnetization under high DC fields. The A values are lower than in single crystals, but in agreement with the important orientation effects introduced by magnetic field texturing. These values also are typical of fabrication techniques involving a melting at some stage.

引用

页码：432 / 438

页数：7

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