Phase Transitions in Systems with Finite Number of Atoms

被引：2

作者：

Kirienko, Yury ^{[1
]}

Afremov, Leonid ^{[1
]}

机构：

[1] Far Eastern Fed Univ, Vladivostok, Russia

来源：

ADVANCED MANUFACTURING TECHNOLOGY, PTS 1-4 | 2012年 / 472-475卷

关键词：

ordering; Curie temperature; magnetic phase transition; concentration phase transition; particles with a finite number of atoms; MAGNETISM; CLUSTERS;

D O I：

10.4028/www.scientific.net/AMR.472-475.1827

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Properties of nanoparticles have been studied within the framework of Ising model and the method of random-field interactions: the average magnetic moment and position of critical points of the magnetic and the concentration phase transitions depending on their size. It is shown that the Curie temperature is inversely proportional to the size of the particle. Critical concentration of the ordered state decreases with increasing of size of nanoparticles until the percolation threshold of massive particles.

引用

页码：1827 / 1830

页数：4

共 10 条

[1] Magnetic Phase Transitions in Ultrathin Films of Different Crystal Structures [J].