Magnetic resonance in quasi-one-dimensional compound [(CH3)3NH]NiCl3 · 2H2O with a strong anisotropy
A. G. AndersPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovV. G. BorisenkoPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovS. V. VolotskiĭPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovYu. V. PereverzevPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov
ABI
Annotatsiya
The frequency-field dependence of magnetic resonance at 1.5 K is measured in the frequency range from 18 to 78 GHz in magnetic fields up to 30 kOe perpendicular to the easy magnetization axis. The angular dependence of the resonance field in the basal ac plane is investigated. Resonance frequencies are calculated by using the model of a rhombic single-sublattice magnet with spin S + 1, which takes into exact account the single-ion anisotropy. The parameters of principal magnetic interactions are determined from the comparison with experimental data (J0 = 60 ± 10 kOe, D = 29.9 ± 0.5 kOe, and E = 5.2 ± 0.5 kOe).
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