Title :
Experimental evidence of ferromagnetic resonance in magnetoimpedance measurements
Author :
de Cos, David ; García-Arribas, Alfredo ; Barandiarán, José Manuel
Author_Institution :
Dept. de Electr. y Electron., Pais Vasco Univ., Bilbao, Spain
Abstract :
Detailed impedance measurements as a function of the applied magnetic field in an amorphous ribbon are presented for frequencies up to 3 GHz. The shape of the impedance versus field curves is greatly modified by the appearance of a contribution whose maximum is displaced toward higher fields as frequency increases. The analysis of the data reveals that the origin of this contribution is the ferromagnetic resonance induced by the alternating magnetic field associated with the flow of the electrical current employed in the impedance measurements.
Keywords :
amorphous magnetic materials; ferromagnetic resonance; giant magnetoresistance; magnetic fields; 3 GHz; alternating magnetic fields; amorphous magnetic materials; amorphous ribbon; ferromagnetic resonance; giant magnetoimpedance; high frequency impedance measurement; magnetoimpedance measurements; Amorphous magnetic materials; Anisotropic magnetoresistance; Frequency measurement; Impedance measurement; Magnetic field measurement; Magnetic fields; Magnetic materials; Magnetic resonance; Magnetization; Permeability; Giant magneto-impedance (GMI); high frequency impedance measurement; magnetic resonance;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2005.858474
