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
This publication has 8 references indexed in Scilit:
- CPA theory of diluted Heisenberg antiferromagnet with random first- and second-neighbour exchange bondsJournal of Physics C: Solid State Physics, 1978
- Series expansion for high-temperature dynamics of randomly diluted Heisenberg paramagnetsPhysical Review B, 1978
- Antiferromagnetic resonance in Mn1-cZncF2Journal of Physics C: Solid State Physics, 1977
- hfs and Néel Temperature inPhysical Review B, 1966
- Neutron inelastic scattering measurements of antiferromagnetic excitations in MnF2 at 4.2°K and at temperatures up to the neel pointPhysics Letters, 1964
- Antiferromagnetism of Mixed Crystals of Zinc and Manganese FluorideProceedings of the Physical Society, 1961
- Nuclear Magnetic Resonance in Paramagnetic MnPhysical Review B, 1957
- Effects of Superexchange on the Nuclear Magnetic Resonance of MnPhysical Review B, 1956