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 Detalle_Publicacion

Magnetoimpedance dependence on width in Co66.5Fe3.5Si12.0B18.0 amorphous alloy ribbons

Abstract: The magnetoimpedance (MI) response of near-zero magnetostriction Co-based amorphous ribbons with different width ranging from 0.35?mm to 0.90?mm was investigated in the frequency range of 10 MHz?3.5?GHz. It was found that the wider ribbon displays the softer magnetic behavior and larger magnetoimpedance. MI response is characterized by two symmetrical peaks corresponding at the two opposite directions of applied magnetic field. The value of magnetic field at the peaks of MI should be assigned to the anisotropy field. Frequency dependencies of anisotropy field for the range 500?1000?MHz could be understood in the framework of skin penetration effect in the ribbons except to that of lowest width (0.35?mm) where the ferromagnetic resonance phenomenon could be predominant at this frequency range. Ferromagnetic resonance was detected in all samples, and for magnetic fields above 4?kA/m the square of resonance frequency quadratically fits vs. the applied field. Given the saturation magnetization, both the anisotropy field and the Landé factor have been determined.

 Fuente: Journal of Applied Physics, 2013, 113(5), 053905

Editorial: American Institute of Physics

 Fecha de publicación: 07/02/2013

Tipo de publicación: Artículo de Revista

 DOI: 10.1063/1.4790480

ISSN: 0021-8979,1089-7550,1520-8850

Proyecto español: MAT2009-13108-C02-01 ; MAT2010-18914

Url de la publicación: https://doi.org/10.1063/1.4790480

Autores/as

PRIDA PIDAL, VICTOR MANUEL DE LA

HERNANDO GRANDE, BLANCA

IPATOV, MIHAIL

ZHUKOVA, VALENTINA

ZHUKOV EGOROVA, ARKADY PAVLOVICH

GONZÁLEZ ESTEVEZ, JULIÁN MARÍA