Fe/Au/Fe(001) ultrathin film structures were grown by molecular beam epitaxy on 4×6 reconstructed GaAs(001) substrates. A microwave network analyzer was used to carry out ferromagnetic resonance (FMR) measurements down to microwave frequency of 1 GHz. The FMR results indicate that the crystalline ultrathin Fe films are of high crystalline quality. The FMR linewidth is mostly given by the intrinsic Gilbert damping and is only weakly affected by small local variations of the internal anisotropy fields. The study at low microwave frequency allowed one to investigate the spin-pumping mechanism in the configuration of noncollinear magnetic moments.
Published in:
Journal of Applied Physics
(Volume:99
,
Issue:
8
)
Date of Publication:
Apr 2006
- Page(s):
-
08F303
-
08F303-3
- ISSN :
-
0021-8979
- Digital Object Identifier :
-
10.1063/1.2173221
- Product Type:
-
Journals & Magazines
- Date of Current Version :
-
18 June 2009
- Issue Date :
-
Apr 2006