Antiferromagnetic resonance in ferroborate NdFe$_3$(BO$_3$)$_4

M. I. Kobets; K. G. Dergachev; E. N. Khatsko; S. L. Gnatchenko; L. N. Bezmaternykh; V. L. Temerov

doi:10.1016/j.physb.2011.06.014

Antiferromagnetic resonance in ferroborate NdFe$_3$(BO$_3$)$_4

Materials Science 2015-05-20 v1

Authors: M. I. Kobets , K. G. Dergachev , E. N. Khatsko , S. L. Gnatchenko , L. N. Bezmaternykh , V. L. Temerov

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

The AFMR spectra of the NdFe $_3$ (BO $_3$ ) $_4$ crystal are measured in a wide range of frequencies and temperatures. It is found that by the type of magnetic anisotropy the compound is an "easy-plane" antiferromagnet with a weak anisotropy in the basal plane. The effective magnetic parameters are determined: anisotropy fields $H_{a1}$ =1.14 kOe and $H_{a2}$ =60 kOe and magnetic excitation gaps $\Delta\nu_1$ =101.9 GHz and $\Delta \nu_2$ =23.8 GHz. It is shown that commensurate-incommensurate phase transition causes a shift in resonance field and a considerable change in absorption line width. At temperatures below 4.2 K nonlinear regimes of AFMR excitation at low microwave power levels are observed.

Keywords

antiferromagnetic resonance NdFe3(BO3)4 easy-plane antiferromagnet magnetic anisotropy commensurate-incommensurate phase transition nonlinear excitation

Cite

@article{arxiv.1012.4588,
  title  = {Antiferromagnetic resonance in ferroborate NdFe$_3$(BO$_3$)$_4},
  author = {M. I. Kobets and K. G. Dergachev and E. N. Khatsko and S. L. Gnatchenko and L. N. Bezmaternykh and V. L. Temerov},
  journal= {arXiv preprint arXiv:1012.4588},
  year   = {2015}
}

Antiferromagnetic resonance in ferroborate NdFe$_3$(BO$_3$)$_4

Abstract

Keywords

Cite

Related papers