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Free keywords:
transverse Ising model; bilayer system; disordered interfaces; ferrimagnetic systems; compensation temperature
MPIPKS:
Superconductivity and magnetism
Abstract:
The magnetic properties of a ferrimagnetic system consisting periodically of two layers of spin-1/2 A atoms, two layers of spin-3/2 B atoms, and a disordered interface in between that is characterized by a random arrangement of A and B atoms of A(p)B(1-p) type and a negative A-B coupling, are examined by the use of the effective field theory within the framework of the probability distribution technique. We find a number of characteristic phenomena. In particular, the effect of disordered interfaces, the interlayer coupling and the transverse field on both the compensation temperature and the magnetization profiles are clarified. (C) 2002 Elsevier Science B.V. All rights reserved.
