Chaos Appearance during Domain Wall Motion under Electronic Transfer in Nanomagnets

• 作者: Donfack Gildas Hermann Jean-Pierre Nguenang
• 来源期刊: 凝固态物理国际期刊(英文)
• 学科: 医学
• 关键词: DOMAIN WALL Motion MAGNETIZATION Dynamics CHAOS APPEARANCE
• 年，卷（期）: 2013,（3）
• 页码范围: 136-143
• 页数: 8页
• 分类号: R73

摘要

In this paper, we study the likelihood of chaos appearance during domain wall motion induced by electronic transfer. Considering a time-varying current density theory, we proceed to a numerical investigation of the dynamics. Using the dissipation parameter, amplitude and frequency of current density as control parameters;we show how periodic regime as well as chaotic regime can be exhibited in nanomagnetic systems. Numerical results allow setting up the periodicity and quasi-periodicity of system and chaotic phenomena occurring during magnetization switching process in nanomagnet through electronic transfer.