Power absorption and ferromagnetic resonance in Co-rich metallic glasses

Author

García-Miquel, H. ; Esbrí, M.J. ; Andrés, J.M. ; García, J.M. ; García-Beneytez, J.M. ; Vázquez, M.

Author_Institution

ETSIT, Univ. Politecnica de Valencia, Spain

Volume

37

Issue

1

fYear

2001

fDate

1/1/2001 12:00:00 AM

Firstpage

561

Lastpage

564

Abstract

The power absorption of Co-rich metallic glasses in the shape of ribbons and microwires has been measured in the microwave frequency range. The technique employed consists of replacing the dielectric of a coaxial transmission line by the amorphous sample to be measured. The ferromagnetic resonance frequency of the microwires has been obtained by analyzing the absorbed power as a function of an external magnetic field. From the evolution of this resonance frequency, the anisotropy field has been deduced and successfully compared to that obtained from low-frequency hysteresis loops

Keywords

amorphous magnetic materials; boron alloys; cobalt alloys; ferromagnetic resonance; magnetic anisotropy; manganese alloys; metallic glasses; microwave materials; microwave measurement; silicon alloys; Co₆₈B₁₅Si₁₀Mn₇; Co_77.5Si_13.5B₉; amorphous microwires; amorphous ribbons; anisotropy field; coaxial transmission line; external magnetic field; ferromagnetic resonance; metallic glasses; microwave frequency range; power absorption; Dielectric measurements; Electromagnetic wave absorption; Glass; Magnetic field measurement; Magnetic resonance; Microwave measurements; Power measurement; Resonant frequency; Shape measurement; Transmission line measurements;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.914378

Filename

914378