Anomalous AFMR in some quasi-one-dimensional Mn2+ compounds
- Phaff, A. C.
- Swüste, C.H.W.
- Kopinga, K.
- De Jonge, W.J.M.
DOIAbstract
Antiferromagnetic resonance experiments in the range 10< nu <60 GHz have been performed on a series of quasi-one-dimensional Mn2+ compounds with varying anisotropy. Pronounced deviations from classical AFMR theory are observed, in accordance with the experiments at higher frequencies reported by Tuchendler et al. (1981). These deviations show a substantial temperature dependence and seem to be related to the amount of anisotropy between the preferred and next-preferred direction of spin alignment. The experimental evidence will be compared with the results of a renormalised spin wave calculation
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