Magnetic damping and spin polarization of highly ordered B2 Co{sub 2}FeAl thin films
Journal Article
·
· Journal of Applied Physics
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904 (United States)
- Department of Materials Science and Engineering, University of Virginia, Charlottesville, Virginia 22904 (United States)
- Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487 (United States)
- Naval Research Laboratory, Washington, DC 20375 (United States)
Epitaxial Co{sub 2}FeAl films were synthesized using the Biased Target Ion Beam Deposition technique. Post annealing yielded Co{sub 2}FeAl films with an improved B2 chemical ordering. Both the magnetization and the Gilbert damping parameter were reduced with increased B2 ordering. A low damping parameter, ∼0.002, was attained in B2 ordered Co{sub 2}FeAl films without the presence of the L2{sub 1} Heusler phase, which suggests that the B2 structure is sufficient for providing low damping in Co{sub 2}FeAl. The spin polarization was ∼53% and was insensitive to the chemical ordering.
- OSTI ID:
- 22314301
- Journal Information:
- Journal of Applied Physics, Vol. 116, Issue 7; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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