MnO Spin-Wave Dispersion Curves from Powder Diffraction Data

Details MnO Spin-Wave Dispersion Curves from Powder Diffraction Data MnO Spin-Wave Dispersion Curves from Powder Diffraction Data

2006-01-24

arxiv.org/abs/cond-mat/0601558v2

Physics

Condensed Matter

Other Condensed Matter

4 pages, 1 figure

Scientific paper

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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