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MnO Spin-Wave Dispersion Curves from Powder Diffraction Data

Andrew L. Goodwin·Martin T. Dove·Matthew G. Tucker·David A. Keen
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Abstract

We describe a model-independent approach for the extraction of spin-wave dispersion curves from neutron total scattering data. The method utilises a statistical analysis of real-space spin configurations to calculate spin-dynamical quantities. The RMCProfile implementation of the reverse Monte Carlo refinement process is used to generate a large ensemble of supercell spin configurations from powder diffraction data. Our analysis of these configurations gives spin-wave dispersion curves that agree well with those determined independently using neutron triple-axis spectroscopic techniques.

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Andrew L. Goodwin, Martin T. Dove, Matthew G. Tucker, David A. Keen. 2006-06-15. MnO Spin-Wave Dispersion Curves from Powder Diffraction Data. https://doi.org/10.1103/physrevb.75.075423

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