このエントリーをはてなブックマークに追加
ID 21452
file
creator
Naito, Y.
Anai, T.
Tamura, K.
subject
liquid alloys and liquid metals
diffraction and scattering measurements
synchrotron radiation
structure
X-rays
NDC
Physics
abstract
Energy dispersive X-ray diffraction measurements have been carried out for liquid Ge1-xSix alloys (x = 0.0, 0.3, 0.5, 1.0) using synchrotron radiation at SPring-8. We measured the X-ray diffraction spectra of liquid Ge and Si up to a high temperature range, (liquid Ge from 1270 to 1870 K and liquid Si from 1680 to 2020 K), liquid Ge0.7Si0.3 at 1620 K, and liquid Ge0.5Si0.5 at 1540, 1590, 1670 and 1720 K. The total structure factors of the liquid Ge-Si alloys have a characteristic shoulder on the high-wave-vector side of the first peak. We deduced a pair distribution function from the Fourier transform of the observed structure factor, which was weakly dependent on the temperature. The nearest-neighbor coordination number of liquid Ge-Si alloys is close to that of pure liquid Ge and Si. The first peak of the pair distribution function moved to a shorter distance with increasing Si concentration. These results may indicate that the atomic radii of the Si and Ge atoms in the pure liquid are preserved in the liquid alloys
journal title
Journal of Non-Crystalline Solids
volume
Volume 353
issue
Issue 32-40
start page
3376
end page
3379
date of issued
2007-10
publisher
Elsevier Science BV
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) 2007 Elsevier Science BV
relation is version of URL
http://dx.doi.org/10.1016/j.jnoncrysol.2007.05.087
department
Graduate School of Integrated Arts and Sciences



Last 12 months's access : ? times
Last 12 months's DL: ? times


This month's access: ? times
This month's DL: ? times