The Pair Approximation method for the ferromagnetic Heisenberg model with spin and arbitrary range of interactions. Application for the magnetic semiconductor CrIAs
arXiv:2006.08318 · doi:10.1016/j.jmmm.2020.167157
Abstract
The Pair Approximation method has been formulated for the isotropic ferromagnetic Heisenberg model with spin . The exchange interactions of arbitrary range have been taken into account. The single-ion anisotropy has been considered as well as the external magnetic field. Within the method, the Gibbs free-energy has been derived, from which all thermodynamic properties can be self-consistently obtained. In order to illustrate the developed formalism, the numerical calculations have been performed for CrIAs planar magnetic semiconductor, a hypothetical material whose existence has been recently predicted by the Density Functional Theory-based calculations. For this model material, all the relevant thermodynamic magnetic properties have been studied. The numerical results have been presented in the figures and discussed.
References in corpus (8)
- Normal and inverse magnetocaloric effect in magnetic multilayers with antiferromagnetic interlayer coupling
- Thermodynamic properties of a diluted Heisenberg ferromagnet with interaction anisotropy -- magnetocaloric point of view
- Critical Temperature Studies of the Anisotropic Bi- and Multilayer Heisenberg Ferromagnets in Pair Approximation
- Thermodynamic description of the Ising antiferromagnet on triangular lattice with selective dilution by modified Pair Approximation method
- The Pair Approximation method for the ferromagnetic Heisenberg model with spin and arbitrary range of interactions. Application for the magnetic semiconductor CrIAs
- Critical temperature of site-diluted spin-1/2 systems with long-range ferromagnetic interactions
- Uncovering A Two-Dimensional Semiconductor with Intrinsic Ferromagnetism at Room Temperature
- Phase diagram of the spin-1 XXZ Heisenberg ferromagnet with a single-ion anisotropy