A COMPARATIVE-STUDY OF INTERGRANULAR PINNING STRENGTHS IN HIGH-TEMPERATURE SUPERCONDUCTORS

被引：2

作者：

BERLING, D

BOLMONT, D

MEHDAOUI, A

LOEGEL, B

机构：

[1] Laboratoire de Physique et de Spectroscopie Electronique, URA 1435, FST, 68093 Mulhouse Cedex, 4, rue des freres Lumiere

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1994年 / 235卷

关键词：

D O I：

10.1016/0921-4534(94)92589-5

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We compare the irreversibility lines deduced from ac susceptibility measurements on Y-123, Bi- and Hg compounds obtained by various techniques (sintering, zone melting, magnetic field texturing). Field and frequency dependences are studied. Including results from the literature, our analysis indicate that fabrication methods containing a melting process favour the creation of pinning sites with high activation energies. Although weaker than in single crystals, an important anisotropy is induced by texturing processes.

引用

页码：2737 / 2738

页数：2

共 3 条

[1] IRREVERSIBILITY LINE AND ANISOTROPY OF MAGNETIC MELT-TEXTURED Y1BA2CU3O7-DELTA STUDIED BY AC SUSCEPTIBILITY [J].

LOEGEL, B ;

MEHDAOUI, A ;

BOLMONT, D ;

DANESI, P ;

BOURGAULT, D ;

TOURNIER, R .

PHYSICA C, 1993, 210 (3-4) :432-438

[2] THE INFLUENCE OF THERMAL TREATMENTS, FABRICATION METHODS AND SHAPES ON THE MAGNETIC TRANSITION OF HIGH-TEMPERATURE SUPERCONDUCTING COMPOUNDS [J].

LOEGEL, B ;

BOLMONT, D ;

MEHDAOUI, A .

PHYSICA C, 1991, 179 (1-3) :15-21

[3] AC SUSCEPTIBILITY OF HIGH-TEMPERATURE SUPERCONDUCTORS IN A CRITICAL STATE MODEL [J].

MULLER, KH .

PHYSICA C, 1989, 159 (06) :717-726

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