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ORIENTATION OF Y2BACUO5 PRECIPITATES DURING UNIDIRECTIONAL SOLIDIFICATION OF Y1BA2CU3O7-DELTA UNDER A MAGNETIC-FIELD

被引：18
作者：
DURAND, L
KIRCHER, F
REGNIER, P
CHATEIGNER, D
PELLERIN, N
GOTOR, FJ
SIMONS, P
ODLER, P
机构：
[1] CENS,CEA,DSM,DAPNIA,F-91191 GIF SUR YVETTE,FRANCE
[2] CRPHT,CNRS,F-45071 ORLEANS 2,FRANCE
[3] UNIV GRENOBLE 1,CRISTALLOG LAB,CNRS,F-38042 GRENOBLE,FRANCE
来源：
SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1995年 / 8卷 / 04期
关键词：
D O I：
10.1088/0953-2048/8/4/003
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The effect of a vertical magnetic field on Y2BaCuO5 (211) precipitates during horizontal unidirectional solidification of YBaCuO has been investigated. EPR shows first that some of the residual 211 particles are not randomly oriented in the 123 matrix when the sample is processed under a magnetic field. Secondly, the analysis of the angular dependency of the EPR spectra shows that these particles tend to be oriented in the 123 crystal with their b(211) crystallographic axis parallel to the applied magnetic field and also to the c(123) axis. X-ray pole figures on the same sample lead to an identical conclusion. The consequences of this observation regarding YBa2Cu3O7-delta (123) crystallization are discussed.
引用
收藏
页码：214 / 218
页数：5
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