Revisiting Spin Glasses: Impact of Spin-Spin Interaction Range

被引：3
|
作者：
da Silva, A. F., Jr. [1 ]
Martins, A. S. [2 ]
de Campos, M. F. [3 ]
Lima, A. P. [4 ]
机构：
[1] CEFET RJ, Ctr Fed Educ Tecnol Celso Suckow da Fonseca, Angra Dos Reis, RJ, Brazil
[2] Univ Fed Fluminense, Dept Fis, ICEx, Volta Redonda, RJ, Brazil
[3] Univ Fed Fluminense, Dept Engn Mecan, EEIMVR, Volta Redonda, RJ, Brazil
[4] CEFET RJ, Ctr Fed Educ Tecnol Celso Suckow da Fonseca, Itaguai, RJ, Brazil
来源：
BRAZILIAN JOURNAL OF PHYSICS | 2018年 / 48卷 / 01期
关键词：
Metals; Magnetic properties; Modeling; MONTE-CARLO-SIMULATION; ALLOYS; MODEL;
D O I：
10.1007/s13538-017-0547-3
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A study of the physical properties of spin glass systems (SG) is carried out within the Monte Carlo technique. The studied systems are the "classic" CuMn and AuFe metallic alloys, where the RKKY interaction is used as a model for the interaction among the magnetic (Mn, Fe) atoms. A careful discussion about the approach to the equilibrium is addressed. By introducing a cutoff radius in the range on the spin-spin interaction, the results show the influence of this range on the spin-glass behavior of the alloys, where the SG behavior is only observed when the full (long range) RKKY is taken into account, specially for low concentrations x < 0.05.
引用
收藏
页码：39 / 45
页数：7
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