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Microstructure and ordering parameter studies in multilayer [FePt(x)/Os]n films.
- Source :
- Journal of Applied Physics; Apr2011, Vol. 109 Issue 7, p07A732-07A732-3, 1p
- Publication Year :
- 2011
-
Abstract
- The microstructure, ordering parameter, and magnetic properties of multilayer [FePt(x)/Os]n films on glass substrate by dc-magnetron sputtering (with x being thickness in nm; Os with a fixed thickness 5 nm; n being the number of layers) have been studied as a function of the annealing temperatures between 300 and 900 °C. The grain size of multilayer films can be controlled by annealing temperature and thickness of the FePt layer with Os space layer. The coercivity as a function of the annealing temperature for samples with n = 1 and pure FePt behaves roughly saturated after annealing above 700 °C. However, for samples with n > 4 the value of Hc seems still increasing with increasing annealing temperature between 600 and 900 °C, and the ordering parameter decreases with increasing the number of Os layers. Our experimental results are reasonably well to describe the effect of strain-assisted transformation. [ABSTRACT FROM AUTHOR]
- Subjects :
- MICROSTRUCTURE
MAGNETRONS
CRYSTAL defects
MICROMECHANICS
THIN films
Subjects
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 109
- Issue :
- 7
- Database :
- Complementary Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 86445189
- Full Text :
- https://doi.org/10.1063/1.3562524