Monte Carlo study of the magnetic properties in a bilayer dendrimer structure with non-magnetic layers

被引:21
作者
Jabar, A. [1 ]
Masrour, R. [1 ]
机构
[1] Cady Ayyed Univ, Natl Sch Appl Sci, Lab Mat Proc Environm & Qual, Safi 46000 63, Morocco
关键词
RKKY interactions; Monte Carlo simulations; Bi-layer structure; Non-magnetic layer; BETHE LATTICE; ISING-MODEL; CRITICAL-BEHAVIOR; PHASE-DIAGRAMS; FE LAYERS; SPIN-3/2; MAGNETORESISTANCE;
D O I
10.1016/j.ssc.2017.09.014
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
In this paper, we study the Ruderman-Kittel-Kasuya-Yosida (RKKY) interactions and magnetic layer effects on the bilayer transitions of a spin-5/2 Blume-Capel model formed by two magnetic blocs separated by a nonmagnetic spacer of finite thickness. The thermalization process of magnetization for systems sizes has been given. We have shown that the magnetic order in the two magnetic blocs depend on the thickness of the magnetic layer. In the total magnetization profiles, the susceptibility peaks correspond to the reduced critical temperature. This critical temperature is displaced towards higher temperatures when increasing the number of magnetic layers. In addition, we have discussed and interpreted the behaviors of the magnetic hysteresis loops.
引用
收藏
页码:38 / 43
页数:6
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