Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/xmlui/handle/10054/4340
Title: Ferromagnetic resonance spectra in Co/Nb multilayers with large Co thickness
Authors: AJAN, A
PRASAD, S
KRISHNAN, R
VENKATARAMANI, N
TESSIER, M
Keywords: Spin-Wave Spectra
Interlayer Exchange
Magnetic Multilayers
Boundary-Conditions
Layers
Magnetoresistance
Superlattice
Scattering
Films
Dependence
Issue Date: 2002
Publisher: AMER INST PHYSICS
Citation: JOURNAL OF APPLIED PHYSICS, 91(3), 1444-1452
Abstract: The perpendicular ferromagnetic resonance spectra for four Co/ Nb multilayered films have been studied. Three of these multilayers had the same thickness of Co (210 Angstrom) with Nb layer thicknesses varying between 18 and 135 Angstrom. The fourth film was a trilayer sandwich film. A multimode spectrum was observed for all the films. The results indicated that the Co films are magnetically coupled even when the Nb film thickness was 135 Angstrom. A new approach to understand the multimode ferromagnetic resonance in magnetic/nonmagnetic multilayer thin film structures was worked out. In this approach, the equation of motion is solved in the magnetic layers, which are assumed to be coupled through a boundary condition. The theoretical calculations gave a good agreement with the experimentally observed field positions when it was assumed that the magnetic properties of the top and the bottom Co layers are slightly different from the intermediate ones. (C) 2002
URI: http://dx.doi.org/10.1063/1.1428793
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4340
http://hdl.handle.net/10054/4340
ISSN: 0021-8979
Appears in Collections:Article

Files in This Item:
File Description SizeFormat 
37.pdf282.36 kBAdobe PDFThumbnail
View/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.