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Updated: Nov 27, 2025

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples
Published on: June 9, 2016
Microstrip resonator for nonlinearity investigation of thin magnetic films and magnetic frequency doubler
B A Belyaev1, A O Afonin1, A V Ugrymov1
1Kirensky Institute of Physics SB RAS, Krasnoyarsk 660036, Russia.
Abstract:
A structure that consists of a λ/4 stepped-impedance microstrip resonator is proposed as an instrument for the investigation of nonlinear effects in thin magnetic films and also can be used as a microwave frequency doubler. A conversion efficiency of 0.65% is observed at a one-layer 100 nm Ni80Fe20 thin film at an input signal level of 4.6 W for a 1 GHz probe signal. The maximum measured conversion efficiency (1% at 1 GHz) was achieved for the 9-layer Ni80Fe20 film where 150 nm magnetic layers were separated by SiO2 layers.
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