We have performed inelastic neutron scattering measurements for liquid selenium to investigate the dynamic structure, S (Q,E), of the chainlike molecules in the liquid state. We observed a distinct optic-type mode at around 31 meV, whose Q dependence of the intensity, S (Q,E∼31 meV), was found to be reproduced by a simple approximation of "three-body" model. We propose the possibility of extracting structural parameters such as bond length and angle by constant E spectra by the use of this simple model, which at the same time provides us a clearcut physical meaning of the Q dependences. © 2008 The American Physical Society.
CITATION STYLE
Chiba, A., Ohmasa, Y., Bennington, S. M., Taylor, J. W., & Yao, M. (2008). Analysis of the optic-type collective mode in liquid selenium to determine the local structure. Physical Review B - Condensed Matter and Materials Physics, 77(13). https://doi.org/10.1103/PhysRevB.77.132202
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