Magnetoimpedance of CoFeCrSiB Ribbon-Based Sensitive Element with FeNi Covering: Experiment and Modeling

Sensors

卷:21

Andrey V. Svalov¹  Nikita V. Kozlov¹  Stanislav O. Volchkov¹  Anna A. Pasynkova¹  Michael S. Derevyanko²  Alexander V. Semirov²  Dmitry A. Bukreev² 

[1] Department of Magnetism and Magnetic Nanomaterials, Institute of Natural Sciences and Mathematics, Ural Federal University, 620002 Ekaterinburg, Russia;

[2] Department of Physics, Pedagogical Institute, Irkutsk State University, 664003 Irkutsk, Russia;

关键词: magnetic field sensors;    rapidly quenched amorphous ribbons;    thin films;    magnetic composites;    computer simulation;    finite elements method;   

DOI  :  10.3390/s21206728

来源: DOAJ

【 摘 要 】

Soft magnetic materials are widely requested in electronic and biomedical applications. Co-based amorphous ribbons are materials which combine high value of the magnetoimpedance effect (MI), high sensitivity with respect to the applied magnetic field, good corrosion stability in aggressive environments, and reasonably low price. Functional properties of ribbon-based sensitive elements can be modified by deposition of additional magnetic and non-ferromagnetic layers with required conductivity. Such layers can play different roles. In the case of magnetic biosensors for magnetic label detection, they can provide the best conditions for self-assembling processes in biological experiments. In this work, magnetic properties and MI effect were studied for the cases of rapidly quenched Co₆₇Fe₃Cr₃Si₁₅B₁₂ amorphous ribbons and magnetic Fe₂₀Ni₈₀/Co₆₇Fe₃Cr₃Si₁₅B₁₂/Fe₂₀Ni₈₀ composites obtained by deposition of Fe₂₀Ni₈₀ 1 μm thick films onto both sides of the ribbons by magnetron sputtering technique. Their comparative analysis was used for finite element computer simulations of MI responses with different types of magnetic and conductive coatings. The obtained results can be useful for the design of MI sensor development, including MI biosensors for magnetic label detection.

【 授权许可】

Unknown