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Acta Physica Polonica A

Quantum Effects and Critical Behavior in Low-Dimensional Spin-1/2 Systems

G. Kamieniarz, G. Musial, L. Dębski, M. Bieliński, Raf Dekeyser

Published Aug 1, 1997• 0 citations
Publisher

Abstract

The critical coupling and spontaneous magnetization curve for the 2D--Isinng model are calculated usiug the effective-field method with correlations.An application of the method to the quantum S = i 1D-Heisenberg model is presented and reliable low-temperature estimates of the specific heat are evaluated.
DOI
10.12693/aphyspola.92.445

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