Abstract
By using a Monte Carlo simulation, we have studied the effects on the multilayer transition and magnetic properties of the crystal field [Formula: see text], the four-spin coupling [Formula: see text] and RKKY interaction in the spin-1 Ashkin–Teller (AT) model of a system composed of two magnetic multi-layer materials, of various thicknesses, separated by a nonmagnetic spacer of thickness [Formula: see text]. By varying the strength of [Formula: see text], we have obtained a new partially ordered phase [Formula: see text], for different values of [Formula: see text]. We have established a rich phase diagram with first and second-order phase transitions with tricritical points. It is shown that the transition temperature of both magnetic blocks depends strongly on the thickness of the magnetic layers [Formula: see text], as well as [Formula: see text] and [Formula: see text]. There exists a critical thickness of the magnetic layers [Formula: see text] above which the multilayer blocks undergo a transition separately at different temperatures, for a high value of [Formula: see text] and [Formula: see text]. Besides, the critical exponents are computed.
Published Version
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.
