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Дата последнего поиска статьи во внешних источниках: 2 октября 2018 г.
Аннотация:Static and dynamic magnetic properties of P¯31m-phase MnSb2O6 have been studied by means of muon-spin
relaxation (μSR), high-frequency electron-spin resonance (HF-ESR), specific heat, and magnetization studies in magnetic fields up to 25 T. The data imply onset of long-range antiferromagnetic order at TN = 8 K and a spin-flop-like transition at BSF ≈0.7–1T. BelowTN, muon asymmetry exhibits well-defined oscillations indicating a narrow distribution of the local fields. A competing antiferromagnetic phase appearing below TN2 = 5.3 K is evidenced by a step in the magnetization and a slight kink of the relaxation rate. Above TN, both μSR and HF-ESR data suggest short-range spin order. HF-ESR data show that local magnetic fields persist up to at least 12TN ≈ 100 K. Analysis of the antiferromagnetic resonance modes and the thermodynamic spin-flop field suggest zero-field splitting of D ≈ 18 GHz which implies small but finite magnetic anisotropy.