Magnetic properties of nanowires with ferromagnetic core and antiferromagnetic shell

被引：4
|
作者：
Patsopoulos, A. [1 ]
Kechrakos, D. [2 ]
Moutis, N. [2 ]
机构：
[1] Univ Athens, Sect Solid State Phys, Dept Phys, GR-15784 Athens, Greece
[2] Sch Pedag & Technol Educ ASPETE, Dept Educ, GR-14131 Athens, Greece
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2019年 / 475卷
关键词：
Exchange bias; Core-shell nanowires; Domain wall; Monte Carlo; DOMAIN-WALL DYNAMICS; EXCHANGE BIAS; CYLINDRICAL NANOWIRES;
D O I：
10.1016/j.jmmm.2018.11.100
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present a Monte Carlo study of the magnetic properties of thin cylindrical nanowires composed of a ferromagnetic core and an antiferromagnetic shell implementing a classical spin Hamiltonian. We address systematically the impact of interface exchange coupling on the loop characteristics and the magnetization reversal mechanism. We study the effect of shell polycrystallinity on the characteristic fields of the isothermal hysteresis loop (coercivity, exchange-bias). We demonstrate that coupling to a polycrystalline antiferromagnetic shell increases the critical core diameter for transition from transverse to vortex domain
引用
收藏
页码：171 / 175
页数：5
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