Random field effects on the phase diagrams of spin-1/2 Ising model on a honeycomb lattice

@article{Yuksel2012RandomFE,
  title={Random field effects on the phase diagrams of spin-1/2 Ising model on a honeycomb lattice},
  author={Yusuf Yuksel and Umit Akıncı and Hamza Polat},
  journal={Physica A-statistical Mechanics and Its Applications},
  year={2012},
  volume={391},
  pages={415-422}
}
The Ising model with quenched random magnetic fields is examined for single Gaussian, bimodal and double Gaussian random field distributions by introducing an effective field approximation that takes into account the correlations between different spins that emerge when expanding the identities. Random field distribution shape dependence of the phase diagrams, magnetization and internal energy is investigated for a honeycomb lattice with a coordination number q=3. The conditions for the… Expand
6 Citations

Figures from this paper

Phase diagram of the classical Heisenberg model in a trimodal random field distribution
The classical spin 1/2 Heisenberg model on a simple cubic lattice, with fluctuating bond interactions between nearest neighbors and in the presence of a random magnetic field, is investigated byExpand
Effective field theory for the Ising model with a fluctuating exchange integral in an asymmetric bimodal random magnetic field: A differential operator technique
The spin-1/2 Ising model on a square lattice, with fluctuating bond interactions between nearest neighbors and in the presence of a random magnetic field, is investigated within the framework of theExpand
Effects of the double Gaussian random field distribution on the phase diagrams and hysteresis characteristics of the magnetic binary alloys
Abstract The effect of the double Gaussian random magnetic field distribution on the binary alloy which represented by the formula A c B 1 − c has been investigated within the framework of effectiveExpand
Binary alloy in random field: Phase diagrams
Abstract Critical behavior of the binary alloy represented by the formula A c B 1 − c under the effect of bimodal random field distribution has been investigated within the framework of effectiveExpand
Effect of the Gaussian random field distribution on the hysteresis and thermodynamic properties of the binary alloy
Abstract The effect of the Gaussian random field distribution on the critical behavior and the hysteresis characteristics of the binary alloy represented by the formula A c B 1 − c has beenExpand
Ising model with four-spin interaction on honeycomb lattice
  • Yuming Yang, B. Teng
  • Materials Science
  • IOP Conference Series: Materials Science and Engineering
  • 2018

References

SHOWING 1-10 OF 124 REFERENCES
On the random field Ising model in a honeycomb lattice
Abstract Within the framework of the effective field theory we discuss the effects of an applied field H, on magnetic properties of the random field Ising model in a honeycomb lattice. The phaseExpand
Random Field Ising Model with Four Spin Interactions
The random field Ising model with four spin interactions is studied within the finite cluster approximation (F.C.A), on square and simple cubic lattices. We have investigated the influence of theExpand
Thermodynamical properties of spin-3/2 ising model in a longitudinal random field with crystal field
A theoretical study of a spin-3/2 Ising model in a longitudinal random field with crystal field is studied by using of the effective-field theory with correlations. The phase diagrams and theExpand
Phase diagram and tricritical behavior of a spin-3/2 transverse Ising model in a random field
Abstract The phase diagrams of a spin- 3 2 transverse Ising model with a random field on honeycomb, square, and simple-cubic lattices, respectively, are investigated within the framework of anExpand
Effects of the bond dilution on the phase diagrams of a spin-1 transverse Ising model with crystal field interaction on a honeycomb lattice
A bond diluted spin-1 Ising model with crystal and transverse field interactions is examined for honeycomb lattice by introducing an effective field approximation that takes into account theExpand
Magnetic properties of a transverse spin-3/2 Ising model with random longitudinal field
Within the framework of the effective-field theory with correlations, a spin-3/2 transverse Ising model in the longitudinal random-field on a honeycomb lattice is studied. The phase diagrams and theExpand
Numerical signs for a transition in the two-dimensional random field Ising model at T=0
Intensive numerical studies of exact ground states of the two-dimensional ferromagnetic random field Ising model at T50, with a Gaussian distribution of fields, are presented. Standard finite sizeExpand
The quantum transverse spin-2 Ising model with a bimodal random-field in the pair approximation
In this paper, we have investigated the bimodal random-field spin-2 Ising system in a transverse field by combining the pair approximation with the discretized path-integral representation. The exactExpand
Absence of tricritical behavior of the random field Ising model in a honyecomb lattice
Abstract In this letter, we study the behavior of the random field Ising model on a honeycomb lattice by means of the effective field theory. We obtain the phase diagram in the T – H plane forExpand
Random-field effects in site-diluted Ising ferromagnets
The effects of a random field on the transition temperature in a quenched site-diluted Ising ferromagnet with coordination number, z=3 are investigated by the use of the effective-field theory withExpand
...
1
2
3
4
5
...