期刊
PHYSICAL REVIEW LETTERS
卷 90, 期 22, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.90.227601
关键词
-
The effect of sample inhomogeneity on the ferromagnetic resonance linewidth is determined by diagonalization of a spin wave Hamiltonian for ferromagnetic thin films with inhomogeneities spanning a wide range of characteristic length scales. A model inhomogeneity is used that consists of size D grains and an anisotropy field H-p that varies randomly from grain to grain in a film with thickness d and magnetization M-s. The resulting linewidth agrees well with the two-magnon model for small inhomogeneity, HpDpiM(s)d, the precession becomes localized and the spectrum approaches that of local precession on independent grains.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据