このエントリーをはてなブックマークに追加
ID 21453
本文ファイル
著者
Hosokawa, S.
Kajihara, Y.
Matsuda, K.
Tsutsui, S.
Baron, A. Q. R.
NDC
物理学
抄録(英)
The dynamic structure factor of molten CsCl has been measured at low momentum transfer, 1.4 nm(-1) <= Q < 33 nm(-1), using high-resolution inelastic x-ray scattering. The longitudinal acoustic mode disperses 1.7 times faster than the adiabatic sound velocity and its linewidth increases following the Q(2) law as predicted by the hydrodynamics. However, the linewidth is a factor of seven smaller than the estimation using the linewidths obtained from Brillouin light scattering. The large speed-up and the significant narrowing of the collective mode, which can be related to each other by a recently presented viscoelastic theory, must arise from the intrinsic nature of molten alkali chlorides. Furthermore in comparison with the previous results for molten NaCl and KCl, the apparent sound velocity is found to be approximately scaled by the inverse of the square-root of the effective mass among these molten salts.
掲載誌名
Journal of Physics-Condensed Matter
19巻
46号
開始ページ
466110
出版年月日
2007-11
出版者
IOP Publishing Ltd
ISSN
0953-8984
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 IOP Publishing Ltd
関連情報URL(IsVersionOf)
http://dx.doi.org/10.1088/0953-8984/19/46/466110
部局名
総合科学研究科