Journal of Physics C Solid State Physics

Surface phase diagrams of the Ising with a transverse field

Enaldo F. Sarmento, I. Tamura, L E M C de Oliveira, T. Kaneyoshi

Published Jun 30, 1984• 33 citations

Abstract

Within the framework of the standard mean-field approximation and an effective-field theory with correlation the authors discuss the phase diagram for surface ordering in a semi-infinite Ising spin system with a transverse field. Although analytically simple, the effective-field theory is superior to the standard mean-field approximation. A certain characteristic behaviour is found for the surface ordering both in the standard mean-field approximation and in the effective-field theory.

DOI: 10.1088/0022-3719/17/18/012

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