Micromagnetic finite element study for magnetic properties of nanocomposite exchange coupled Nd2Fe14B/α-Fe multilayer systems

被引：2
作者：
Ryo, Hyok-Su [1 ,2 ]
Hu, Lian-Xi [1 ]
Kim, Jin-Guk [1 ,2 ]
Yang, Yu-Lin [3 ]
机构：
[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
[2] Kim Sung Univ, Fac Phys, Pyongyang 999093, South Korea
[3] Harbin Inst Technol, Sch Chem & Chem Engn, Harbin 150001, Peoples R China
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2017年 / 426卷
关键词：
Nanocomposite permanent magnet; Exchange coupling; Micromagnetic finite element simulation; Microstructure; Multilayer magnetic system; PERMANENT-MAGNETS; EFFECTIVE ANISOTROPY; PHASE DISTRIBUTION; GRAIN-SIZE; SOFT; MICROSTRUCTURE; SIMULATION;
D O I：
10.1016/j.jmmm.2016.11.041
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, magnetic properties of exchange coupled nanocomposite multilayer thin films constructed alternately with magnetic hard Nd2Fe14B layers and soft alpha-Fe layers have been studied by micromagnetic finite element method (FEM). According to the results, effects of the thicknesses of layers and the magneto-crystalline anisotropy on the magnetic properties of the Nd2Fe14B/alpha-Fe multilayer systems have been estimated. On the other hand, the results have been analyzed by means of efficiency of interphase exchange coupling, which can be estimated by volume ratios of exchange coupled areas between magnetically hard Nd2Fe14B and soft alpha-Fe phase layers. The results show that the magnetic properties of exchange coupled Nd2Fe14B/alpha-Fe multilayer systems can be enhanced by efficient interphase exchange coupling between magnetically hard Nd2Fe14B layers and soft alpha-Fe layers.
引用
收藏
页码：328 / 333
页数：6
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