Studying Magnetization Distribution in Magnetic Thin Films under Transversal Application of Magnetic Fields

• 作者: Aleksey Anatolievich Zakharenko
• 来源期刊: 现代物理(英文)
• 学科: 数学
• 关键词: Landau-Lifshits Equations Thin Films MAGNETIZATION Static and Dynamic Modes.
• 年，卷（期）: 2010,（1）
• 页码范围: 33-43
• 页数: 11页
• 分类号: O1

摘要

The problem of magnetization change across the direction of magnetic field for a magnetic layer with non-symmetric boundary conditions was treated. The exact solution of the problem for the magnetization components mx and my was written in the form of complex combination of Jacobian elliptic functions and elliptic integrals. This allows one to demonstrate both the static mode and all dynamic modes for the mag-netization distribution across the layer thickness. The static mode and several dynamic modes, as well as the first and second derivatives of the magnetization components, were calculated. Also, average values of the magnetization components ?mx? and ámy? for the static mode and three dynamic modes were calculated in dependence on the magnetic field. The obtained results can represent an interest in the large amount of ap-plications of magnetic devices such as recording media, memory chips, and computer disks. The results are also useful for checking different numerical methods recently applied to study the problem, because it is thought that any numerical method cannot demonstrate solutions for the dynamic modes.