Frustration effect and the spin glass transition temperature in the bond mixtures of the Ising model in the face-centred cubic lattice
- 20 September 1980
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 13 (26) , 4995-5007
- https://doi.org/10.1088/0022-3719/13/26/019
Abstract
The random-bond mixture of the Ising model on the FCC lattice is treated by the tetrahedron approximation. The phase diagram of the binary mixture of the ferromagnetic (F) and antiferromagnetic (AF) bonds are determined. The phase diagram of the ternary mixture of F, AF and the non-magnetic (N) bonds is also calculated by the simple version of the tetrahedron approximation. It is shown that they have the paramagnetic, ferromagnetic and spin glass (G) phases. In particular it is shown that the diluted antiferromagnet has no AF phase but a G phase. The phase diagram of the binary mixture is qualitatively similar to those for EuxSr1-xS, Co(SxSe1-x)2 and (Ti1-xVx)2O3.Keywords
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