Modelling study of magnetic and concentration phase transition in ultrathin antiferromagnetic films

• Published in: Journal of physics. Conference series Vol. 490; no. 1; pp. 12021 - 4
• Main Authors: Leonid, Afremov, Aleksandr, Petrov
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.01.2014
• Subjects: Antiferromagnetism; Crystal structure; Crystals; Film thickness; Magnetic materials; Mathematical models; Modelling; Neel temperature; Phase transformations; Phase transitions; Physics
• ISSN: 1742-6596; 1742-6588; 1742-6596
• DOI: 10.1088/1742-6596/490/1/012021

Using the method of the "average spin" a modelling study of magnetic and concentration phase transition in ultrathin antiferromagnetic of different crystalline structure has been carried out. It has been shown, that relative change of Neel temperature is subject to the power law with negative index which doesn't depend on the film's crystal kind. The calculation of the dependence of phase transition critical concentration in diluted magnetic material on the film thickness has been made out. The legitimacy of the use of the method developed for modelling of magnetic and concentration phase transition in different nanostructures is certified by accordance between the results of calculations and the experimental data.