Studies on the effect of Cobalt and Titanium substitution in NdFeB thin films for magnetic recording media

Authors
Chandrasekhar, R Mapps, DJ O'Grady, K Cambridge, J Petford-Long, A Doole, R
Citation
R. Chandrasekhar et al., Studies on the effect of Cobalt and Titanium substitution in NdFeB thin films for magnetic recording media, J MAGN MAGN, 197, 1999, pp. 104-106
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
03048853 → ACNP
Volume
197
Year of publication
1999
Pages
104 - 106
Database
ISI
SICI code
0304-8853(199905)197:<104:SOTEOC>2.0.ZU;2-E
Abstract
We have investigated as series of substituted NdFeB thin films (NdFeBX wher e X = Co, Cu, Ti, Zr partially replacing Fe) of different thickness. The pe rpendicular coercivity has a maximum of 2700 Oe for a thickness of 200 nm a fter annealing at 625 degrees C for 15 mins. It is found that coercivity ca n be controlled by varying the thickness of the films. We have observed tha t the grain size is controlled to less than 25 nm in the substituted films. (C) 1999 Elsevier Science B.V. All rights reserved.