%0 Journal Article
%A Herrero Gómez, Carlos
%A Aragón Sánchez, Ana María
%A Hernando Rydings, Manuel
%A Marín Palacios, María Pilar
%T Stress and field contactless sensor based on the scatteringof electromagnetic waves by a single ferromagnetic microwire
%D 2014
%@ 0003-6951
%U https://hdl.handle.net/20.500.14352/33983
%X In this paper, we report an experimental study on the microwave modulated scattering intensity for a single Fe_2.25Co_72.75Si_10B_15 amorphous metallic microwire. The modulation is driven by applying a bias magnetic field that tunes the magnetic permeability of the ferromagnetic microwire. Furthermore, by using a magnetostrictive microwire, we also demonstrate that the microwave scattering is sensitive to mechanical stresses. In fact, we present a wireless microwave controlled stress sensor, suitable for biological applications, as a possible use of this effect. In addition, a first order theoretical approximation accounts for the observed influence of the magnetic permeability on the scattering coefficients. That model leads to predictions in good agreement with the experimental results.
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