| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1811878 | Physica B: Condensed Matter | 2011 | 6 Pages |
Abstract
The AFMR spectra of the NdFe3(BO3)4 crystal are measured in a wide range of frequencies and temperatures. It is found that by the type of its 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 Ha1=1.14 kOe and Ha2=60 kOe and magnetic excitation gaps Δν1Δν1=101.9 GHz and Δν2Δν2=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.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
M.I. Kobets, K.G. Dergachev, E.N. Khatsko, S.L. Gnatchenko, L.N. Bezmaternykh, V.L. Temerov,