Eur. Phys. J. Appl. Phys. (2014) 65: 10601
https://doi.org/10.1051/epjap/2013130264

The effect of mechanical polishing on current annealed Co₆₇Fe₅Si₁₅B₁₃ amorphous ribbons: magnetoimpedance response

¹ Department of Physics, University of Kashan, 87314 Kashan, Iran
² Institute of Nanoscience and Nanotechnology, University of Kashan, 87314 Kashan, Iran
³ Department of Physics, Shahid Beheshti University, Evin, 19839 Tehran, Iran

^a e-mail: m-mohseni@sbu.ac.ir

Received: 31 May 2013
Revised: 1 October 2013
Accepted: 4 December 2013
Published online: 6 January 2014

Abstract

A systematic current annealing treatment to achieve a high magnetoimpedance (MI) response in CoFeSiB amorphous ribbons is demonstrated. After current annealing in the present of air, although transverse permeability can increase but because of a significant surface oxidization, condition to reach a high MI response cannot be achieved. Additionally, this process leads to asymmetric MI response. In this paper, the effect of mechanical polishing of samples after current annealing is studied. We show a significant MI change by removing the hard magnetic phase on sample surface after current annealing. Results are useful and promising to be employed to reach high MI response for sensing applications.