Magnetic Properties of Quasi Two-Dimensional Antiferromagnetic Materials: Application to Rb2MnCl4, Rb2MnF4 and K2MnF4

A class of materials simulating the two-dimensional Heisenberg antiferromagnets with an XXZ spin anisotropy is studied using the method of double-time-temperature Green's functions (GF) with spin S = 5/2 within Tyablikov's decoupling approximation. The Neel temperature TN is calculated emp...

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Bibliographic Details
Main Authors: Pantic, M R, Manojlovic, M S, Kapor, D V
Format: Conference Proceeding
Language:English
Online Access:Get full text
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Summary:A class of materials simulating the two-dimensional Heisenberg antiferromagnets with an XXZ spin anisotropy is studied using the method of double-time-temperature Green's functions (GF) with spin S = 5/2 within Tyablikov's decoupling approximation. The Neel temperature TN is calculated employing the method of Callen, and agrees rather well with the measured values for the quasi two-dimensional antiferromagnets Rb2MnCl4, Rb2MnF4 and K2MnF4 in zero magnetic field.
ISSN:0094-243X
DOI:10.1063/1.2733379