Magnetic properties and giant magnetoimpedance of surface modified Co-based amorphous ribbons with carbon covering

Elizaveta V. Golubeva; Anna A. Chlenova; Elena A. Stepanova; Galina V. Kurlyandskaya

doi:10.1051/epjconf/201818510001

Proceedings

Open Access

EPJ Web of Conferences 185, 10001 (2018)
https://doi.org/10.1051/epjconf/201818510001

Magnetic properties and giant magnetoimpedance of surface modified Co-based amorphous ribbons with carbon covering

Elizaveta V. Golubeva¹, Anna A. Chlenova¹, Elena A. Stepanova¹ and Galina V. Kurlyandskaya¹^,2

¹ UrFU Ural Federal University, Laboratory of Magnetic sensoric, 620002, Lenin Ave. 51, Ekaterinburg, Russia
² Universidad del País Vasco UPV-EHU, Depto Electricidad y Electrónica, 48940, Leioa, Spain

Corresponding author: anna.chlenova@urfu.ru

Published online: 4 July 2018

Abstract

Fe₃Co₆₆Cr₃Si₁₆B₁₂ and Fe₆Co₆₀Ni₁₀Si₁₄B₁₀ amorphous ribbons were surface modified in toluene at room temperature. Such a treatment resulted in deposition of thin carbon-based layer. As a result of the carbon covering deposition the stress distribution in the near-surface layers was changed due to partial compensation of the initial quenching stresses. Comparative analysis of magnetic and magnetoimpedance properties of as-quenched and surface modified ribbons confirms changes in effective magnetic anisotropy as a result of surface treatment. An increase of the corrosion resistance of the ribbons with carbon covering can be useful for the development amorphous ribbon based magnetic biosensor.

© The Authors, published by EDP Sciences, 2018

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