このエントリーをはてなブックマークに追加
ID 21452
本文ファイル
著者
Naito, Y.
Anai, T.
Tamura, K.
キーワード
liquid alloys and liquid metals
diffraction and scattering measurements
synchrotron radiation
structure
X-rays
NDC
物理学
抄録(英)
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
掲載誌名
Journal of Non-Crystalline Solids
353巻
32-40号
開始ページ
3376
終了ページ
3379
出版年月日
2007-10
出版者
Elsevier Science BV
ISSN
0022-3093
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
author
権利情報
Copyright(c) 2007 Elsevier Science BV
関連情報URL(IsVersionOf)
http://dx.doi.org/10.1016/j.jnoncrysol.2007.05.087
部局名
総合科学研究科