Analysis of the optic-type collective mode in liquid selenium to determine the local structure

Ayano Chiba, Yoshinori Ohmasa, Stephen M. Bennington, Jon W. Taylor, Makoto Yao

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number132202
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume77
Issue number13
DOIs
Publication statusPublished - 2008 Apr 10

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Selenium
selenium
Optics
optics
Inelastic neutron scattering
Liquids
Bond length
liquids
inelastic scattering
neutron scattering
Molecules
approximation
molecules

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Analysis of the optic-type collective mode in liquid selenium to determine the local structure. / Chiba, Ayano; Ohmasa, Yoshinori; Bennington, Stephen M.; Taylor, Jon W.; Yao, Makoto.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 77, No. 13, 132202, 10.04.2008.

Research output: Contribution to journalArticle

Chiba, Ayano ; Ohmasa, Yoshinori ; Bennington, Stephen M. ; Taylor, Jon W. ; Yao, Makoto. / Analysis of the optic-type collective mode in liquid selenium to determine the local structure. In: Physical Review B - Condensed Matter and Materials Physics. 2008 ; Vol. 77, No. 13.
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