Micromagnetic simulation of domain structure in thin permalloy films with in-plane a

被引：10

作者：

Solovev, P. N. ^{[1
,2
]}

Izotov, A., V ^{[1
,2
]}

Belyaev, B. A. ^{[1
,2
]}

Boev, N. M. ^{[1
,2
]}

机构：

[1] Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, 50-38 Akademgorodok, Krasnoyarsk 660036, Russia

[2] Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia

来源：

PHYSICA B-CONDENSED MATTER | 2021年 / 604卷

关键词：

Micromagnetic simulation; Thin magnetic film; Magnetic anisotropy; Stripe domains; Hysteresis loop; Saturation field; ANISOTROPY; NOISE;

D O I：

10.1016/j.physb.2020.412699

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We investigate the domain structure formation and magnetization processes in thin permalloy films with in-plane and perpendicular magnetic anisotropy by using micromagnetic simulation. We show that the films of thicknesses less than a critical value L-cr are in the monodomain state, and their magnetization processes are specified by the in-plane anisotropy. Above the critical thickness L-cr, the perpendicular anisotropy dominates, leading to the formation of the stripe domain structure that significantly complicates the magnetization reversal. The values of the critical thickness, parameters of the domain structure, and the saturation field obtained from the micromagnetic simulations are compared with the corresponding values calculated using analytical expressions derived by Murayama in the framework of the domain structures theory.

引用

页数：6

共 31 条

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