Title :
Classical model of extrinsic ferromagnetic resonance linewidth in ultrathin films
Author :
McMichael, Robert D. ; Krivosik, Pavol
Author_Institution :
Nat. Inst. of Stand. & Technol., Gaithersburg, MD, USA
Abstract :
This paper describes a classical version of the two-magnon model of ferromagnetic resonance linewidth in inhomogeneous magnetic thin films. The ferromagnetic resonance line broadening due to inhomogeneity is described in terms of film properties and the statistical properties of the inhomogeneity. Analytical results for the case of ultrathin films in the limit of zero damping are compared with numerical results computed with finite damping.
Keywords :
damping; ferromagnetic resonance; magnetic thin films; magnons; extrinsic ferromagnetic resonance; ferromagnetic resonance linewidth; finite damping; inhomogeneous magnetic thin films; magnetization dynamics; numerical results; two-magnon model; ultrathin films; zero damping; Anisotropic magnetoresistance; Couplings; Damping; Frequency; Magnetic field measurement; Magnetic films; Magnetic resonance; Magnetic susceptibility; Magnetization; NIST;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2003.821564
