| Autor: |
Fukushima, Hiroshi, Uesaka, Yasutaro, Nakatani, Yoshinobu, Hayashi, Nobuo |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 1/1/2007, Vol. 101 Issue 1, p013901-N.PAG, 7p, 4 Diagrams, 10 Graphs |
| Abstrakt: |
By solving Brown’s Fokker-Planck equation numerically with the spherical harmonics, the magnetization reversal of a single-domain particle in a field at an oblique angle up to 45° to the easy axis is investigated. Different from the usual definition, the switching time is defined as the time when the averaged z component of the magnetization reaches 90% of its final value. The switching times of the particle under various conditions are calculated. When the oblique angle of the field is 30°-45° and its magnitude is larger than the Stoner-Wohlfarth limit (Hsw), the switching time is dependent slightly on the oblique angle and magnitude of the field, and the temperature. For the oblique angle of 5°, the switching time depends largely on the magnitude of the field and the temperature. When the magnitude of the field is less than Hsw, the switching time is dependent largely on the oblique angle and the temperature. Effects of the damping constant are also studied. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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