Monte Carlo simulations of the magnetic properties of a site-disordered Blume Capel multilayer spin-1 system
محورهای موضوعی : Journal of Theoretical and Applied Physics
Amel Benmansour
1
,
Nabil Brahmi
2
,
Smaine Bekhechi
3
,
Abdeljalil Rachadi
4
,
Hamid Ez-Zahraouy
5
1 - Department of physics, Faculty of Sciences, Laboratory of Theoretical Physics, University of Tlemcen, BP119, Algeria.
2 - Department of physics,Faculty of Sciences, Laboratory of Theoretical Physics, , University of Tlemcen, BP119, Algeria.
3 - Department of Physics, Faculty of Sciences, Laboratory of Theoretical Physics, University of Tlemcen, BP119, Algeria.
4 - Department of physics, Faculty of Sciences, Laboratory of Condensed Matter and Interdisciplinary Sciences (LaMCScl), Mohammed V University of Rabat, P. O. Box 1014, Morocco.
5 - Department of physics, Faculty of Sciences, Laboratory of Condensed Matter and Interdisciplinary Sciences (LaMCScl), Mohammed V University of Rabat, P. O. Box 1014, Morocco.
کلید واژه: Compensation temperature, Site dilution, Multilayer spins system, Blume Capel model, Tricritical point,
چکیده مقاله :
We used standard Monte Carlo simulations to investigate the magneticproperties of a spin-1 Ising multilayer system composed of two non-equivalentplanes A and B, where B being site-diluted. Antiferromagnetic interlayerand ferromagnetic intralayer spin couplings have been considered.Our calculations indicated the occurrence of a compensation phenomenon where the magnetization vanishes before the critical temperature. The effects of various model parameters on the system magnetic properties have been examined in detailand presented in the form of phase diagrams. The results bore some resemblancewith those reported in some previous works on systems with or withoutsite-dilution. Depending on values of the spin concentration parameter Pthe model displayed first- and second-order phase boundaries with theexistence of a tricritical point.
