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Magnetization dynamics of the compensated ferrimagnet $Mn_{2}Ru_{x}Ga$

Magnetization dynamics of the compensated ferrimagnet $Mn_{2}Ru_{x}Ga$

Authors :
Jean Besbas
Gwenael Atcheson
Alexey Kimel
J. M. D. Coey
Plamen Stamenov
G. Bonfiglio
K. Siewerska
Th. Rasing
A. Kirilyuk
Karsten Rode
Source :
Physical Review B, 100, Physical Review B, 100, 10, Physical Review B
Publication Year :
2019

Abstract

Here we study both static and time-resolved dynamic magnetic properties of the compensated ferrimagnet from room temperature down to 10K, thus crossing the magnetic compensation temperature $T_{M}$. The behaviour is analysed with a model of a simple collinear ferrimagnet with uniaxial anisotropy and site-specific gyromagnetic ratios. We find a maximum zero-applied-field resonance frequency of $\sim$160GHz and a low intrinsic Gilbert damping $\alpha$$\sim$0.02, making it a very attractive candidate for various spintronic applications.<br />Comment: 6 pages, 6 figures, accepted paper in PRB (https://journals.aps.org/prb/accepted/df07aOb2T7f1e845c21429304f825e825c3a5f190)

Details

Language :
English
ISSN :
24699950
Database :
OpenAIRE
Journal :
Physical Review B, 100, Physical Review B, 100, 10, Physical Review B
Accession number :
edsair.doi.dedup.....af50b62c835ada344e88069a25919b2f