CPA estimate for Neel temperature of (Mn)x(Zn)1-xF2
- 14 July 1978
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 11 (13) , 2845-2850
- https://doi.org/10.1088/0022-3719/11/13/030
Abstract
Recently a CPA-RPA theory has been proposed for treating site and bond randomness in antiferromagnets which experience exchange couplings of arbitrary range. As a simple application of this theory, the behaviour of the Neel temperature, Tc(x), is analysed in the mixed system (Mn)x(Zn)1-xF2. The results are found to be in reasonable agreement with the experimental data of Baker, Lourens and Stevenson (1961).Keywords
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