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    Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/64467


    Title: Current induced localized domain wall oscillators in NiFe/Cu/NiFe submicron wires
    Authors: Chang, L. J.;Lin, Pang;Lee, S. F.
    李尚凡
    Contributors: 應物所
    Date: 2012.12
    Issue Date: 2014-03-05 17:53:05 (UTC+8)
    Abstract: We experimentally demonstrate domain wall (DW) oscillators excited by in-plane ac current through permalloy based pseudo-spin valve wires, which contain one pair of artificial protrusions. By measuring the spin-transfer-torque induced resonance of a pinned antiparallel transverse DW, under transverse external fields, we show that the antiparallel transverse DW oscillates with a resonance frequency as high as 2.92 GHz, depending on the widths of protrusions. For DW oscillations induced by injection of dc currents, the observed peaks in dV/dI associated with the reversible change of magnetoresistance are attributed to the reversible motions of the DW.
    Relation: Applied Physics Letters, 101(24), 242404
    Source URI: http://dx.doi.org/10.1063/1.4770306
    Data Type: article
    Appears in Collections:[Graduate Institute of Applied Physics] Periodical Articles

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