Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2008-11-08
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
4 pages, regular article, 4 figures accepted for publication in Physical Review Letters
Scientific paper
We determine the composition of intrinsic as well as extrinsic contributions to the anomalous Hall effect (AHE) in the isoelectronic L1o FePd and FePt alloys. We show that the AHE signal in our 30 nm thick epitaxially deposited films of FePd is mainly due to extrinsic side-jump, while in the epitaxial FePt films of the same thickness and degree of order the intrinsic contribution is dominating over the extrinsic mechanisms of the AHE. We relate this crossover to the difference in spin-orbit strength of Pt and Pd atoms and suggest that this phenomenon can be used for tuning the origins of the AHE in complex alloys.
Aziz Abdulazim
Blamire Mark G.
Hickey Benjamin J.
Hindmarch A. T.
Kronast Florian
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