BIQUADRATIC COUPLING DEPENDENCE ON SPACER LAYER THICKNESS FOR FE CR/FE/

Authors
AZEVEDO A CHESMAN C LUCENA M DEAGUIAR FM REZENDE SM PARKIN SSP
Citation
A. Azevedo et al., BIQUADRATIC COUPLING DEPENDENCE ON SPACER LAYER THICKNESS FOR FE CR/FE/, Journal of magnetism and magnetic materials, 177, 1998, pp. 1177-1178
Citations number
8
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
177
Year of publication
1998
Part
2
Pages
1177 - 1178
Database
ISI
SICI code
0304-8853(1998)177:<1177:BCDOSL>2.0.ZU;2-E
Abstract
We report on exchange coupling properties in sputtered Fe(40 Angstrom) /Cr(t)/Fe(40 Angstrom) trilayers. By fitting Brillouin light scatterin g, ferromagnetic resonance and magneto-optical Kerr-effect data to the oretical expressions, the exchange coupling parameters J(1) and J(2) c an be reliably extracted. We have found that the ratio J(1)/J(2) in th e first negative peak is much bigger than recently reported. The FMR l ow-temperature measurements show a behavior which depends on the Cr la yer thickness. (C) 1998 Elsevier Science B.V. All rights reserved.