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Title: 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
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
URI: http://hdl.handle.net/10261/21646
ISSN: 0003-6951
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Citation: Applied Physics Letters 94(6): 062505 (2009)
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