Тип публикации: статья из журнала
Год издания: 2021
Идентификатор DOI: 10.1016/j.physb.2020.412699
Ключевые слова: hysteresis loop, magnetic anisotropy, micromagnetic simulation, saturation field, stripe domains, thin magnetic film
Аннотация: 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 Lcr are in the monodomain state, and their magnetization processes are specified byПоказать полностьюthe in-plane anisotropy. Above the critical thickness Lcr, 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. © 2020 Elsevier B.V.
Журнал: Physica B: Condensed Matter
Выпуск журнала: Vol. 604
Номера страниц: 412699
ISSN журнала: 09214526
Издатель: Elsevier B.V.