Magnetic structure of single-domain antiferromagnetic FCT γ-Mn-Cu and γ-Mn-Fe alloys
作者： J. Jankowska , K. Mikke , E.Z. Vintaikin , V.A. Udovenko
DOI: 10.1016/0304-8853(82)90281-5
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摘要: Abstract Detailed neutron diffraction studies both by double axis and triple spectrometer are reported for the first time fct single-domain single crystals of γ-Mn-Cu γ-Mn-Fe. The main purpose these was to elucidate further nature diffuse (001) peak, forbidden AF1 magnetic structure, established earlier in this group γ-Mn alloys. Line shapes their temperature dependence were measured (001), (100) (010) reflections Mn-Fe Mn—Cu, latter case homogeneous (quenched) chemically decomposed (aged) samples. Only reflection found Mn-Fe, while Mn-Cu samples peaks also observed at (010). Together with results energy analysis data suggest a new model structure In spins deviate fixed angle from c perturbation has an infinite correlation range life time. more complex set perturbations is required interpret data.
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