Spin-wave alternating periodic–chaotic dynamics

详细信息    查看全文

• 作者：de Aguiar ; F.M. ; Rosenblatt ; S. ; Rezende ; S.M. ; Azevedo ; A.
• 关键词：Chaos ; Spin waves ; Ferromagnetic resonance
• 刊名：Journal of Magnetism and Magnetic Materials
• 出版年：2001
• 出版时间：May, 2001
• 年：2001
• 卷：226-230
• 期：Part 1
• 页码：524-526
• 全文大小：97.9 K

文摘

A description is given of pulsed ferromagnetic subsidiary resonance experiments in a YIG sphere at room temperature. Beyond the Suhl instability threshold, evidences were found for the elusive alternating periodic–chaotic sequence. The spin-wave self-oscillations have recently been characterized through one-dimensional return maps. Here it is shown that the observed scenario is also in good qualitative agreement with results from numerical simulations with a standard two-mode microscopic model.