ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Brillouin light-scattering experiments have been done at various angles of incidence, θ, for four specimens prepared by molecular-beam epitaxy. The specimens were single ultrathin films of Fe deposited on single-crystal Ag substrates. Dependence of magnon frequency on θ is easily resolvable in all specimens. We find that the magnitude of this dependence is in good agreement with a theoretical calculation that takes into account magnetic anisotropies, dipole-dipole, and exchange interactions. Our results imply that magnetic excitations in these specimens are correlated over distances of at least 5000 A(ring).
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.352475