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    Please use this identifier to cite or link to this item: http://nccur.lib.nccu.edu.tw/handle/140.119/80590


    Title: Vortex induced by dc current in a circular magnetic spin valve nanopillar
    Authors: 李尚凡
    Lee, S.F.
    Contributors: 應物所
    Date: 2012-04
    Issue Date: 2016-01-14 17:57:46 (UTC+8)
    Abstract: We investigate the characteristic of vortex states induced by a dc current in trilayer circular magnetic nanopillars experimentally. Our samples are designed such that both the soft and hard layers can contain a magnetic vortex and the interlayer is thick enough such that only dipolar interaction is important. The relative chiralities between the two layers’ vortex configurations as functions of external field and current are studied with various diameters. We also perform micromagnetic simulation on the magnetization reversals to compare with the magnetoresistance (MR) curves measured at low current and with current induced magnetization states. The current induced magnetization behaviors due to the spin transfer torque effect and the additional Oersted field are clearly identified on the resistance behavior.
    Relation: IEEE Trans. Magn., 48(4), 1297-1300.
    Data Type: article
    DOI 連結: http://dx.doi.org/10.1109/TMAG.2011.2173670
    DOI: 10.1109/TMAG.2011.2173670
    Appears in Collections:[應用物理研究所 ] 期刊論文

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