Rights statement: © 2010 The American Physical Society
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Spin-Orbit Strength Driven Crossover between Intrinsic and Extrinsic Mechanisms of the Anomalous Hall Effect in the Epitaxial L1(0)-Ordered Ferromagnets FePd and FePt
AU - Seemann, K. M.
AU - Mokrousov, Y.
AU - Aziz, A.
AU - Miguel, J.
AU - Kronast, F.
AU - Kuch, W.
AU - Blamire, M. G.
AU - Hindmarch, A. T.
AU - Hickey, B. J.
AU - Souza, I.
AU - Marrows, C. H.
N1 - © 2010 The American Physical Society
PY - 2010/2/19
Y1 - 2010/2/19
N2 - We determine the composition of intrinsic as well as extrinsic contributions to the anomalous Hall effect (AHE) in the isoelectronic L1(0) FePd and FePt alloys. We show that the AHE signal in our 30 nm thick epitaxially deposited films of FePd is mainly due to an 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.
AB - We determine the composition of intrinsic as well as extrinsic contributions to the anomalous Hall effect (AHE) in the isoelectronic L1(0) FePd and FePt alloys. We show that the AHE signal in our 30 nm thick epitaxially deposited films of FePd is mainly due to an 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.
KW - ANISOTROPY
KW - FILMS
U2 - 10.1103/PhysRevLett.104.076402
DO - 10.1103/PhysRevLett.104.076402
M3 - Journal article
VL - 104
JO - Physical review letters
JF - Physical review letters
SN - 0031-9007
IS - 7
M1 - 076402
ER -