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題名 Chemical Composition Tuning of the Anomalous Hall Effect in Isoelectronic L10FePd1-xPtx Alloy Films
作者 郭光宇
Guo, Guang-Yu
貢獻者 應物所
日期 2012.08
上傳時間 24-Jan-2014 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
資料類型 article
DOI http://link.aps.org/doi/10.1103/PhysRevLett.109.066402
dc.contributor 應物所en_US
dc.creator (作者) 郭光宇zh_TW
dc.creator (作者) Guo, Guang-Yuen_US
dc.date (日期) 2012.08en_US
dc.date.accessioned 24-Jan-2014 12:54:25 (UTC+8)-
dc.date.available 24-Jan-2014 12:54:25 (UTC+8)-
dc.date.issued (上傳時間) 24-Jan-2014 12:54:25 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/63549-
dc.description.abstract (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.en_US
dc.format.extent 704788 bytes-
dc.format.mimetype application/pdf-
dc.language.iso en_US-
dc.relation (關聯) Physical Review Letters, 109, 066402en_US
dc.title (題名) Chemical Composition Tuning of the Anomalous Hall Effect in Isoelectronic L10FePd1-xPtx Alloy Filmsen_US
dc.type (資料類型) articleen
dc.identifier.doi (DOI) 10.1103/PhysRevLett.109.066402-
dc.doi.uri (DOI) http://link.aps.org/doi/10.1103/PhysRevLett.109.066402-