Abstract
Phase transitions have been computer-simulated using the Monte Carlo method in the three-dimensional antiferromagnetic Ising model for the various ratios of the exchange integrals calculated over the surface and bulk of the system. The phase diagram of the system has been constructed. It has been shown that the phase diagram contains a phase in which the ordering of spins located on the surface takes place at a temperature below the Neel temperature. Contrary to the ferromagnetic Ising model, lines of phase transitions intersect at the tetracritical rather than tricritical point. The dependence of the surface critical exponents on the ratio of the exchange integrals has been obtained. It has been discovered that, at a ratio of the exchange integrals less than a certain value, the surface phase transition exhibits attributes of the phase transition of the third order.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
