ORDERING KINETICS IN A 2-DIMENSIONAL PERCOLATION MAGNET

被引：39

作者：

IKEDA, H ^{[1
]}

ENDOH, Y ^{[1
]}

ITOH, S ^{[1
]}

机构：

[1] TOHOKU UNIV,DEPT PHYS,AOBA KU,SENDAI,MIYAGI 980,JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.64.1266

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The ordering kinetics in a two-dimensional dilute Ising antiferromagnet near the percolation threshold, Rb2Co0.60Mg0.40F4, 4, are studied. The random magnetic field created by the uniform external field destroys the long-range order; after removing the field the development of order in the system with a fractal geometry can be observed. Both neutron scattering and magnetic measurements give the first observation of a logarithmic growth law with a temperature dependent power below the Néel temperature. © 1990 The American Physical Society.

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页码：1266 / 1269

页数：4

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