自旋-轨道强度驱动的L1o FePd和FePt中反常霍尔效应的内、外机制交叉
Spin-orbit strength driven crossover between intrinsic and extrinsic mechanisms of the anomalous Hall effect in epitaxial L1o FePd and FePt
摘要：
我们确定的组成的本征以及非本征的贡献异常霍尔效应（AHE）的等电子L10 FePd和FePt合金。我们发现，在我们的30 nm厚的外延沉积薄膜的FePd的AHE信号主要是由于外部侧跳，而在外延FePt膜的相同厚度和程度的顺序的本征贡献是占主导地位的外在机制的AHE。我们将这种交叉的Pt和Pd原子的自旋轨道强度的差异，并建议这种现象可用于调整复杂合金中的AHE的起源。
英文摘要：
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.
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