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https://ah.lib.nccu.edu.tw/handle/140.119/64467
題名: | Current induced localized domain wall oscillators in NiFe/Cu/NiFe submicron wires | 作者: | Chang, L. J. ; Lin, Pang ; Lee, S. F. 李尚凡 |
貢獻者: | 應物所 | 日期: | 2012 | 上傳時間: | 5-Mar-2014 | 摘要: | 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. | 關聯: | Applied Physics Letters, 101(24), 242404 | 資料來源: | http://dx.doi.org/10.1063/1.4770306 | 資料類型: | article |
Appears in Collections: | 期刊論文 |
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File | Description | Size | Format | |
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242404.pdf | 1.13 MB | Adobe PDF2 | View/Open |
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