このエントリーをはてなブックマークに追加
ID 26515
file
creator
Tamura, Kozaburo
Hazemann, J. L.
Raoux, D.
Soldo, Y.
Argoud, R.
Jal, J. F.
NDC
Physics
abstract
X-ray absorption fine structure (XAFS) measurements for expanded fluid Se at high temperatures and pressures up to 1650°C and 600 bar have been carried out to investigate the change of local structure with volume expansion. The electronic property of fluid Se changes from a semiconducting one to metallic with increasing temperature and pressure. When the volume is further expanded, the fluid becomes non-metallic vapor. XAFS spectra of the non-metallic vapor shows that the vapor rarer than the critical density consists mainly of Se dimers. When the volume contracts exceeding the critical density, the first peak in the radial distribution function is shifted towards larger distance and is increasingly asymmetrical.
journal title
Journal of Non-Crystalline Solids
volume
Volume 250-252
issue
Issue 2
start page
525
end page
530
date of issued
1999-08-01
publisher
Elsevier Science B.V.
issn
0022-3093
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) 1999 Elsevier Science B.V. All rights reserved.
relation url
department
Graduate School of Integrated Arts and Sciences