TY - JOUR
T1 - Magnetization dynamics through magnetoimpedance effect in isotropic Co 2FeAl/Au/Co2FeAl full-heusler alloy trilayer films
AU - Corrêa, Marcio Assolin
AU - Escobar, Vivian Montardo
AU - Trigueiro-Neto, Osvaldo
AU - Bohn, Felipe
AU - Sossmeier, Kelly Daiane
AU - Bezerra, Claudionor Gomes
AU - Chesman, Carlos
AU - Pearson, John
AU - Hoffmann, Axel
PY - 2013/9
Y1 - 2013/9
N2 - We investigate the magnetization dynamics in low damping parameter α systems by measuring the magnetoimpedance effect over a wide range of frequencies, from 0.1 to 3.0 GHz, in Co2FeAl/Au/CoFeAl full-Heusler alloy trilayer films grown by magnetron sputtering on glass and MgO substrates. We show that the film produced on the glass substrate presents high magnetoimpedance performance, while that grown on the MgO substrate has low magnetoimpedance performance. Since both films are polycrystalline and have isotropic in-plane magnetic properties, we interpret the magnetoimpedance results in terms of the low damping parameter α and strain effects in the films. Thus, we verified that our films present good magnetoimpedance performance and showed that high performance can be achieved even in films with isotropic in-plane magnetic properties, since they present low damping parameter α.
AB - We investigate the magnetization dynamics in low damping parameter α systems by measuring the magnetoimpedance effect over a wide range of frequencies, from 0.1 to 3.0 GHz, in Co2FeAl/Au/CoFeAl full-Heusler alloy trilayer films grown by magnetron sputtering on glass and MgO substrates. We show that the film produced on the glass substrate presents high magnetoimpedance performance, while that grown on the MgO substrate has low magnetoimpedance performance. Since both films are polycrystalline and have isotropic in-plane magnetic properties, we interpret the magnetoimpedance results in terms of the low damping parameter α and strain effects in the films. Thus, we verified that our films present good magnetoimpedance performance and showed that high performance can be achieved even in films with isotropic in-plane magnetic properties, since they present low damping parameter α.
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U2 - 10.7567/APEX.6.093001
DO - 10.7567/APEX.6.093001
M3 - Article
AN - SCOPUS:84883736716
SN - 1882-0778
VL - 6
JO - Applied Physics Express
JF - Applied Physics Express
IS - 9
M1 - 093001
ER -