| Autor: |
Mizukami, S., Iihama, S., Inami, N., Hiratsuka, T., Kim, G., Naganuma, H., Oogane, M., Ando, Y. |
| Předmět: |
|
| Zdroj: |
Applied Physics Letters; 1/31/2011, Vol. 98 Issue 5, p052501, 3p |
| Abstrakt: |
Fast magnetization precession is observed in L10-FePt alloy epitaxial thin films excited and detected by all-optical means. The precession frequency varies from 45 to 65 GHz depending on the applied magnetic field strength and direction, which can be explained by a uniform precession model taking account of first- and second-order uniaxial magnetic anisotropy. The lowest effective Gilbert damping constant has a minimum value of 0.055, which is about half that in Co/Pt multilayers and is comparable to Ni/Co multilayers with perpendicular magnetic anisotropy. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
