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Control of Coercivity in Exchange-Coupled Graded (001) FePt : SiO2 Nanocomposite Films.
- Source :
- IEEE Transactions on Magnetics; Jun2010, Vol. 46 Issue 6, p2435-2437, 3p
- Publication Year :
- 2010
-
Abstract
- We fabricated exchange-coupled composite films with perpendicular anisotropy using nanograins of L1<subscript>0</subscript> FePt as a magnetically hard base layer and FePt : SiO<subscript>2</subscript> as a relatively soft phase. The degree of anisotropy and nanostructure in the soft layer was controlled by varying the deposition temperature. Growth of the low-anisotropy layer followed the particulate structure of the base layer at deposition temperatures of 390°C or greater. Perpendicular coercivities were strongly dependent on both the anisotropy and thickness of the softer layer. [ABSTRACT FROM AUTHOR]
- Subjects :
- MAGNETICS
ANISOTROPY
NANOSTRUCTURES
MAGNETIC recording media
MAGNETIC films
Subjects
Details
- Language :
- English
- ISSN :
- 00189464
- Volume :
- 46
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Magnetics
- Publication Type :
- Academic Journal
- Accession number :
- 51117755
- Full Text :
- https://doi.org/10.1109/TMAG.2009.2039554