Title :
Chaos of magnetic domain wall motion: Lyapunov exponent and controlling
Author :
Okuno, Hikaru ; Hirata, Kouji ; Sakata, Tomoki
Author_Institution :
Inst. of Eng. Mech., Tsukuba Univ., Ibaraki, Japan
fDate :
11/1/1995 12:00:00 AM
Abstract :
The Lyapunov exponent is calculated and shown to be a positive value; this is a strict index to determine chaos. Controlling chaos of domain wall motion is demonstrated by using the OGY method. The domain wall is made to stand still at a saddle point or oscillate sinusoidally out of chaotic motion
Keywords :
Lyapunov methods; chaos; magnetic domain walls; Lyapunov exponent; OGY method; chaos; magnetic domain wall motion; Chaos; Damping; Difference equations; Frequency; Magnetic domain walls; Magnetic fields; Magnetic recording; Magnetic resonance; Motion control; Nonlinear equations;
Journal_Title :
Magnetics, IEEE Transactions on
