Magnetization reduction induced by nonlinear effects
介观与纳米尺度物理
2007-05-23 v3
摘要
This letter reports the first detailed measurement of , the component parallel to the effective field direction, when ferromagnets are excited by microwave fields at high power levels. It is found that drops dramatically at the saturation of the main resonance. Simultaneous measurements of and absorption power show that this drop corresponds to a diminution of the spin-lattice relaxation rate. These changes are interpreted as reflecting the properties of longitudinal spinwaves excited above Suhl's instability. Similar behavior should be expected in spinwave emission by currents.
引用
@article{arxiv.cond-mat/0405301,
title = {Magnetization reduction induced by nonlinear effects},
author = {G. de Loubens and V. V. Naletov and O. Klein},
journal= {arXiv preprint arXiv:cond-mat/0405301},
year = {2007}
}
备注
10 pages, 4 figures