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Stress-induced magnetic anisotropy enabling engineering of magnetic softness GMI effect and domain wall dynamics of amorphous microwires

Abstract: We showed that stress-annealing performed under proper conditions can improve magnetic softness, domain wall (DW) velocity and giant magneto-impedance (GMI) effect of Fe-based microwires. One order of magnitude improvement of GMI ratio and more than 100% increase of DW velocity have been achieved by stress-annealing. Observed dependencies have been related to the domain structure modification evidenced from the evolution of the hysteresis loops upon stress-annealing. We discussed observed results considering that the outer domain shell with transverse magnetic anisotropy affects the travelling DW in a similar way as the application of transverse bias magnetic field. GMI ratio improvement is attributed to beneficial magnetic anisotropy distribution achieved by stress-annealing.

 Autoría: Zhukova V., Corte-Leon P., González-Legarreta L., Ipatov M., Talaat A., Blanco J.M., Gonzalez J., Olivera J., Zhukov A.,

 Fuente: Physics of Metals and Metallography, 2020, 121(4), 316-321

 Editorial: Pleiades Publishing

 Fecha de publicación: 01/04/2020

 Nº de páginas: 6

 Tipo de publicación: Artículo de Revista

 DOI: 10.1134/S0031918X20040183

 ISSN: 0031-918X,1555-6190

 Proyecto español: PGC2018-099530-B-C31

 Url de la publicación: https://doi.org/10.1134/S0031918X20040183

Autoría

ZHUKOVA, VALENTINA

CORTE LEÓN, PAULA

IPATOV, MIHAIL

TALAAT, AHMED

BLANCO ARANGUREN, JUAN MARÍA

GONZÁLEZ ESTÉVEZ, JULIÁN

OLIVERA CABO, JESÚS

ZHUKOV, ARCADY