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

doi:10.1103/PhysRevB.100.104438

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

Materials Science 2019-10-04 v1

Authors: 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.

Keywords

compensated ferrimagnet magnetization dynamics Gilbert damping magnetic compensation temperature spintronics ferrimagnetic resonance

Cite

@article{arxiv.1909.09085,
  title  = {Magnetization dynamics of the compensated ferrimagnet $Mn_{2}Ru_{x}Ga$},
  author = {G. Bonfiglio and K. Rode and K. Siewerska and J. Besbas and G. Y. P. Atcheson and P. Stamenov and J. M. D. Coey and A. V. Kimel and Th. Rasing and A. Kirilyuk},
  journal= {arXiv preprint arXiv:1909.09085},
  year   = {2019}
}

Comments

6 pages, 6 figures, accepted paper in PRB (https://journals.aps.org/prb/accepted/df07aOb2T7f1e845c21429304f825e825c3a5f190)

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

Abstract

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