TY - JOUR
T1 - Numerical analysis of successive ballistic rotations of magnetization caused by an application of sinusoidal magnetic fields
AU - Nozaki, Yukio
AU - Matsuyama, Kimihide
PY - 2006/8/11
Y1 - 2006/8/11
N2 - The magnetization reversal in a single-domain magnetic particle caused by a sinusoidal hard-axis field has been numerically studied for its application to magnetic random-access memories. The switching properties are analyzed as functions of the amplitude and frequency of the sinusoidal field. A sinusoidal field with a frequency higher than the magnetization relaxation frequency can induce successive ballistic trajectories of magnetization, which causes a large rotation surmounting the hard-axis direction. By choosing an appropriate frequency, it is found that the switching current amplitude can be reduced to one-fifth that of the static Stoner condition.
AB - The magnetization reversal in a single-domain magnetic particle caused by a sinusoidal hard-axis field has been numerically studied for its application to magnetic random-access memories. The switching properties are analyzed as functions of the amplitude and frequency of the sinusoidal field. A sinusoidal field with a frequency higher than the magnetization relaxation frequency can induce successive ballistic trajectories of magnetization, which causes a large rotation surmounting the hard-axis direction. By choosing an appropriate frequency, it is found that the switching current amplitude can be reduced to one-fifth that of the static Stoner condition.
KW - Ferromagnetic resonance
KW - MRAMs
KW - Magnetization reversal
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U2 - 10.1143/JJAP.45.L758
DO - 10.1143/JJAP.45.L758
M3 - Article
AN - SCOPUS:33748847199
SN - 0021-4922
VL - 45
SP - L758-L760
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
IS - 29-32
ER -