In situ Brillouin scattering investigation of spin waves during the fcc to bcc transition of Fe/Cu(100) films

Author

Carlotti, Giovanni ; Gubbiotti, Gianluca ; Madami, Marco ; Socino, Giovanni ; Tacchi, Silvia

Author_Institution

Dipt. di Fisica, Univ. di Perugia, Italy

Volume

39

Issue

5

fYear

2003

Firstpage

2708

Lastpage

2710

Abstract

Brillouin light scattering has been exploited in situ to study spin waves in ultrathin Fe/Cu(100) films during the fcc-bcc phase transition. A splitting of the surface spin-wave peak has been observed, due to the existence of different bcc domains, which are magnetically coupled. Measurements of the spin-wave frequency as a function of the in-plane direction and of the intensity of the applied magnetic field, as well as of the incidence angle of light, enabled us to determine the magnetic parameters of the films, including both the in-plane and out-of-plane anisotropy constants.

Keywords

Brillouin spectra; copper; iron; magnetic anisotropy; magnetic thin films; solid-state phase transformations; spin waves; Brillouin light scattering; FCC-BCC phase transition; Fe-Cu; Fe/Cu(100) film; anisotropy constant; magnetic field; magnetic parameters; spin wave; Brillouin scattering; Couplings; Frequency measurement; Iron; Light scattering; Magnetic anisotropy; Magnetic domains; Magnetic field measurement; Magnetic films; Perpendicular magnetic anisotropy;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2003.815570

Filename

1233192