RANDOM-FIELD EFFECTS IN SITE-DILUTED ISING-FERROMAGNETS

被引:15
作者
BOBAK, A
JASCUR, M
机构
[1] Dept. of Theor. Phys. and Geophys., P.J. Safarik Univ., Kosice
关键词
D O I
10.1088/0953-8984/3/34/007
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The effects of a random field on the transition temperature in a quenched site-diluted Ising ferromagnet with coordination number z = 3 are investigated by the use of the effective-field theory with correlations. We find that the critical concentration of magnetic atoms at which the transition temperature reduces to zero depends on a random field. The influence of the dilution on the re-entrant phenomenon is also studied.
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页码:6613 / 6616
页数:4
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