Phase transitions in Ising magnetic films and superlattices
Xiao-Guang Wang, Shao-Hua Pan, Guo-Zhen Yang
TL;DR
This paper uses mean field theory and transfer matrix methods to derive general equations for phase transition temperatures in Ising magnetic films and superlattices, applicable to various interaction constants and layer numbers.
Contribution
It introduces a set of nonlinear equations for phase transition temperatures in Ising films and superlattices that are valid for arbitrary interactions and layer configurations.
Findings
Derived general nonlinear equations for transition temperatures.
Numerical analysis of transition temperatures versus exchange interactions.
Applicable to films and superlattices with any layer number.
Abstract
Within the framework of mean field theory, we examine the phase transitions in Ising magnetic films and superlattices. By transfer matrix method, we derive two general nonlinear equations for phase transition temperatures of Ising magnetic films and superlattices, respectively. The equations can be applied to the films and superlattices with arbitrary exchange interaction constants and arbitrary layer number. Numerical results for phase transition temperatures as a function of exchange interaction constants are presented.
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