Strain Dependence of Hysteretic Giant Magnetoimpedance Effect in Co-Based Amorphous Ribbon

Michał Nowicki; Piotr Gazda; Roman Szewczyk; Andriy Marusenkov; Anton Nosenko; Vasyl Kyrylchuk

doi:10.3390/ma12132110

Strain Dependence of Hysteretic Giant Magnetoimpedance Effect in Co-Based Amorphous Ribbon

Materials (Basel). 2019 Jun 30;12(13):2110. doi: 10.3390/ma12132110.

Authors

Michał Nowicki¹, Piotr Gazda², Roman Szewczyk², Andriy Marusenkov³, Anton Nosenko⁴, Vasyl Kyrylchuk⁴

Affiliations

¹ Warsaw University of Technology, Institute of Metrology and Biomedical Engineering, 02-495 Warsaw, Poland. m.nowicki@mchtr.pw.edu.pl.
² Warsaw University of Technology, Institute of Metrology and Biomedical Engineering, 02-495 Warsaw, Poland.
³ Lviv Center of the Institute of Space Research, 79060 Lviv, Ukraine.
⁴ V. Kurdyumov Institute for Metal Physics of NAS of Ukraine, 03142 Kyiv, Ukraine.

Abstract

The significant strain dependence of the hysteretic Giant Magnetoimpedance (GMI) effect in a Co₆₇Fe₃Cr₃B₁₂Si₁₅ amorphous alloy in a low magnetizing field is presented. A simplistic test stand capable of continuous measurements of GMI characteristics under the influence of strain is detailed. Based on the results, a stress-impedance (SI) sensor is proposed, with a gauge factor similar to semiconductor strain gauges but more robust. An effective method of minimizing external magnetic field influence on the SI effect is given.

Keywords: GMI; magnetomechanical sensor; soft magnetic materials; stress-impedance.