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    题名: Chemical Composition Tuning of the Anomalous Hall Effect in Isoelectronic L10FePd1-xPtx Alloy Films
    作者: 郭光宇
    Guo, Guang-Yu
    贡献者: 應物所
    日期: 2012.08
    上传时间: 2014-01-24 12:54:25 (UTC+8)
    摘要: The anomalous Hall effect (AHE) in alloy films is studied both experimentally and theoretically. We find that the intrinsic contribution () to the AHE can be significantly increased, whereas the extrinsic side-jump contribution () can be continuously reduced from being slightly larger than in FePd to being much smaller than in FePt, by increasing the Pt composition . We show that this chemical composition tuning of the intrinsic contribution is afforded by the stronger spin-orbit coupling strength on the site when the lighter Pd atoms are replaced by the heavier Pt atoms. Our results provide a means of manipulating the competing AHE mechanisms in ferromagnetic alloys for fully understanding the AHE and also for technological applications of ferromagnetic alloys.
    關聯: Physical Review Letters, 109, 066402
    数据类型: article
    DOI 連結: http://link.aps.org/doi/10.1103/PhysRevLett.109.066402
    DOI: 10.1103/PhysRevLett.109.066402
    显示于类别:[應用物理研究所 ] 期刊論文

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