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ID 20632
file
creator
Hosokawa, Shinya
Matsuda, Kazuhiro
Tsutsui, Satoshi
Baron, Alfred Q. R.
subject
liquid Se
collective dynamics
inelastic X-ray scattering
de Gennes narrowing
NDC
Physics
abstract
The dynamic structure factor of liquid Se was measured at 523 K using high-resolution inelastic X-ray scattering. Anomalous narrowing of the spectrum was observed at 15 nm-1, where the static structure factor S(Q) exhibits a weak shoulder, but the elastic part of the dynamic structure factor S(Q,E = 0) exhibited a strong maximum. The second frequency moment, which is estimated from only the quasi-elastic peak, is consistent with the motion of rigid six-atom clusters, while a formal agreement with the first-moment sum rule is preserved by the appearance of a weak intramolecular mode at 30 meV.
journal title
Journal of the Physical Society of Japan
volume
Volume 76
issue
Issue 5
start page
053601-1
end page
053601-4
date of issued
2007-05-15
publisher
日本物理学会
issn
0031-9015
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
Copyright (c) 2007 The Physical Society of Japan
relation url
department
Graduate School of Integrated Arts and Sciences



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