KINETICS OF DIFFUSION-CONTROLLED OXYGEN ORDERING IN A LATTICE-GAS MODEL OF YBA2CU3O7-DELTA

被引：19

作者：

ANDERSEN, JV ^{[1
]}

BOHR, H ^{[1
]}

MOURITSEN, OG ^{[1
]}

机构：

[1] RISO NATL LAB,DK-4000 ROSKILDE,DENMARK

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.42.283

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nonequilibrium properties of oxygen ordering in high-Tc superconductors of the Y-Ba-Cu-O type are studied via computer simulation of an anisotropic two-dimensional lattice-gas model in which the ordering processes are controlled by diffusion across the sample edges. With a view to designing optimal annealing strategies, various quenches and annealing schedules through the phase diagram are investigated. The ordering kinetics and the grain morphology are found to have a characteristic dependence on the thermal treatment of the system. © 1990 The American Physical Society.

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页码：283 / 287

页数：5

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