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arXiv · 1909.09085

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

G. Bonfiglio·K. Rode·K. Siewerska·J. Besbas·G. Y. P. Atcheson·P. Stamenov·J. M. D. Coey·A. V. Kimel·Th. Rasing·A. Kirilyuk
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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.

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G. Bonfiglio, K. Rode, K. Siewerska, J. Besbas, G. Y. P. Atcheson, P. Stamenov, J. M. D. Coey, A. V. Kimel, Th. Rasing, A. Kirilyuk. 2019-09-19. Magnetization dynamics of the compensated ferrimagnet $Mn_{2}Ru_{x}Ga$. https://doi.org/10.1103/physrevb.100.104438

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