Ferromagnetic and spin-wave resonance in Ni0.8Fe0.2/Dy1-x Co-x bilayer films

Authors
Iskhakov, RS Yakovchuk, VY Stolyar, SV Chekanova, LA Seredkin, VA
Citation
Rs. Iskhakov et al., Ferromagnetic and spin-wave resonance in Ni0.8Fe0.2/Dy1-x Co-x bilayer films, PHYS SOL ST, 43(8), 2001, pp. 1522-1526
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICS OF THE SOLID STATE
ISSN journal
10637834 → ACNP
Volume
43
Issue
8
Year of publication
2001
Pages
1522 - 1526
Database
ISI
SICI code
1063-7834(2001)43:8<1522:FASRIN>2.0.ZU;2-P
Abstract
The standing spin wave spectra of Ni0.8Fe0.2(1000-3000 Angstrom)/(Dy1-xCox (700 Angstrom) bilayer exchange-biased films with two different (precompens ation Dy0.2Co0.8 and postcompensation Dy0.3Co0.7) compositions of the hard magnetic layer are analyzed. Measurements are performed at room temperature . It is found that the effective magnetic layer thickness (d(eff) = d(0) +/ - Deltad), which determines the wave vectors of the first modes in the spec trum, differs from the d(0) value specified in film technology. The sign of \Deltad\ similar to 500 Angstrom is governed by the composition of the DyC o hard magnetic layer. (C) 2001 MAIK "Nauka/Interperiodica".