Abstract
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.
| Original language | English |
|---|---|
| Journal | Japanese Journal of Applied Physics, Part 2: Letters |
| Volume | 45 |
| Issue number | 29-32 |
| DOIs | |
| Publication status | Published - 2006 Aug 11 |
| Externally published | Yes |
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Keywords
- Ferromagnetic resonance
- Magnetization reversal
- MRAMs
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
Cite this
Numerical analysis of successive ballistic rotations of magnetization caused by an application of sinusoidal magnetic fields. / Nozaki, Yukio; Matsuyama, Kimihide.
In: Japanese Journal of Applied Physics, Part 2: Letters, Vol. 45, No. 29-32, 11.08.2006.Research output: Contribution to journal › Article
}
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 - Magnetization reversal
KW - MRAMs
UR - http://www.scopus.com/inward/record.url?scp=33748847199&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33748847199&partnerID=8YFLogxK
U2 - 10.1143/JJAP.45.L758
DO - 10.1143/JJAP.45.L758
M3 - Article
AN - SCOPUS:33748847199
VL - 45
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 29-32
ER -