The effect of anisotropies on the transition temperature in a spin-12and spin-32 bilayer system with disordered interfaces

M Jaščur and T Kaneyoshi

Physica A: Statistical Mechanics and its Applications, 1995, vol. 220, issue 3, 542-551

Abstract: Transition temperatures of a bilayer system with A2 (ApB1−p)1 (B)2 consisting periodically of two layers of spin-12 A atoms, two layers of spin-32 B atoms and an interface with alloying-type (ApB1−p) disorder are examined by the use of the effective-field theory superior to the standard mean-field theory. In particular, the effects of different single-ion anisotropies in the bulk B layers and disordered interfaces on the transition temperature are clarified. Some interesting behaviours are obtained, depending on the values of anisotropies and exchange interactions in the disordered interfaces and bulk layers.

Date: 1995
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:220:y:1995:i:3:p:542-551

DOI: 10.1016/0378-4371(95)00216-T

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