Open AccessMAGNETIC ANISOTROPY AND SPIN SPECTRA IN Ni-FeCr MULTILAYER FILMS
Author(s) -
Huiyu Chen,
Luo You-Quan
Publication year - 1991
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.40.1364
Subject(s) - materials science , anisotropy , condensed matter physics , sputtering , magnetic anisotropy , ferromagnetic resonance , ferromagnetism , anisotropy energy , surface (topology) , spectral line , coupling (piping) , surface energy , nuclear magnetic resonance , magnetic field , thin film , magnetization , optics , composite material , nanotechnology , physics , geometry , mathematics , quantum mechanics , astronomy
Ni-FeCr multilayer films were prepared by diode sputtering technique. These multilayer films exhibit magnetic uniaxial anisotropy that is shown by fitting the anglar dependence of ferromagnetic uniform resonance field. The anisotropy energy could be expressed by EK=K1sin2θ+K2sin4θ, where K2/K1≈0.59. However the behavior of surface mode suggests that che surface and interface anisotropy of these multilayer films is not of the uniaxis type. We consider that is caused by the exchange coupling at the surface and interface.