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Open Access item Nonlinear magnetoimpedance and parametric excitation of standing spin waves in a glass-covered microwire

Authors:Kraus, L.
Vázquez, M.
Infante, Germán
Badini-Confalonieri, G. A.
Torrejón, Jacob
Keywords:Giant magnetoresistance, Glass, Spin waves, Wires
Issue Date:9-Feb-2009
Publisher:American Institute of Physics
Citation:Applied Physics Letters 94(6): 062505 (2009)
Abstract:The giant magnetoimpedance of an 8.5 µm glass-covered amorphous microwire was investigated in the frequency range of 10 MHz–3.5 GHz. It was found that when the exciting microwave current exceeds some threshold value, a periodic fine structure appears in the frequency dependence of the complex impedance. The appearance of this nonlinear phenomenon is interpreted to be a consequence of the parametric excitation of standing spin waves.
Description:3 pages, 3 figures.-- PACS: 75.47.De; 75.30.Ds
Publisher version (URL):http://dx.doi.org/10.1063/1.3079659
Appears in Collections:(ICMM) Artículos

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