Chaos in nanomagnet via feedback current

Nonlinear magnetization dynamics excited by spin-transfer effect with feedback current is studied both numerically and analytically. The numerical simulation of the Landau-Lifshitz-Gilbert equation indicates the positive Lyapunov exponent for a certain range of the feedback rate, which identifies th...

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Veröffentlicht in:	Physical review. B 2019-11, Vol.100 (17), p.174425, Article 174425
Hauptverfasser:	Taniguchi, Tomohiro, Akashi, Nozomi, Notsu, Hirofumi, Kimura, Masato, Tsukahara, Hiroshi, Nakajima, Kohei
Format:	Artikel
Sprache:	eng
Schlagworte:	Chaos theory Computer simulation Damping Feedback Ferromagnetism Nonlinear dynamics Spin dynamics Torque
Online-Zugang:	Volltext
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