Home // IARIA Congress 2022, The 2022 IARIA Annual Congress on Frontiers in Science, Technology, Services, and Applications // View article

Electronic Surveillance and Security Applications of Magnetic Glass-coated Microwires.

Authors:
Valentina Zhukova
Mihail Ipatov
Paula Corte-León
Alvaro Gonzalez
Alfonso García- Gómez
Arcady Zhukov

Keywords: magnetic microwires; magnetic softness; magnetic bistability, magnetic tags.

Abstract:
Applications in security and electronic surveillance require combination of excellent magnetic softness with good mechanical and anti-corrosive properties and low dimensionality. We overviewed the feasibility of using glass-coated microwires for electronic article surveillance and security applications, as well as different routes of tuning the magnetic properties of individual microwires or microwires arrays making them quite attractive for electronic article surveillance and security applications. We provide the routes for tuning the hysteresis loops non-linearity by the magne-tostatic interaction between the microwires in the arrays of different types of amorphous microwires. The presence of neighboring microwire (either Fe or Co-based) significantly affects the hysteresis loop of the whole microwires array. In a microwires array containing magnetically bistable microwires, we observed splitting of the initially rectangular hysteresis loop with a number of Barkhausen jumps correlated with the number of magnetically bistable microwires. Essentially, non-linear and irregular hysteresis loops have been observed in mixed arrays containing Fe and Co-rich microwires. The obtained non-linearity in hysteresis loops allowed to increase the harmonics and tune their magnetic field dependencies. On the other hand, several routes allowing to tune the switching field by either post-processing or modifying the magnetoelastic anisotropy have been reviewed. The observed unique combination of magnetic properties together with thin dimensions and excellent mechanical and anti-corrosive properties provide excellent perspectives for the use of glass-coated microwires for security and electronic surveillance applications.

Pages: 15 to 19

Copyright: Copyright (c) IARIA, 2022

Publication date: July 24, 2022

Published in: conference

ISBN: 978-1-68558-017-9

Location: Nice, France

Dates: from July 24, 2022 to July 28, 2022