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Title: Equivalence of the Krieger-James approximation and the constant-coupling approximation in magnetism
Authors: Savithramma, K.L.
Madhusudana, N.V.
Keywords: Krieger-James approximation
Constant coupling approximation
Issue Date: Apr-1978
Publisher: Indian Academy of Sciences, Bangalore, India.
Citation: Pramana, 1978, Vol. 10, p349-356.
Abstract: We have applied the Krieger-James approximation to a description of short range order effects in both ferro- and antiferromagnetism. In this method, a mechanical consistency condition is imposed on the probability distribution of a pair of near neighbours in a cluster of (Z + 1) ions. The resulting theory is analytically equivalent to the familiar constant coupling approximation, thus ensuring thermodynamic equilibrium of the system.
ISSN: 0304-4289
Copyright: Indian Academy of Sciences, Bangalore, India.
Appears in Collections:Research Papers (SCM)

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