Structural instability and the metal–non-metal transition in expanded fluid metals

Journal of Non-Crystalline Solids Volume 353 Issue 32-40 Page 3348-3357 published_at 2007-10-15
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Title ( eng )
Structural instability and the metal–non-metal transition in expanded fluid metals
Creator
Tamura Kozaburo
Matsuda Kazuhiro
Ishikawa Daisuke
Source Title
Journal of Non-Crystalline Solids
Volume 353
Issue 32-40
Start Page 3348
End Page 3357
Abstract
X-ray diffraction, small angle X-ray scattering and inelastic X-ray scattering measurements for fluid Hg in the wide density range up to the supercritical region have been carried out using synchrotron radiation at SPring-8. We obtained the static and dynamic structure factors as a function of temperature, pressure and density. Based on the results we found that there exist medium-range fluctuations accompanying the metal–non-metal transition in fluid Hg. The scale of the fluctuations was about 10 A in space and sub-picoseconds in time. We discuss the possibility that such structural instability induces the metal–non-metal transition in expanded fluid Hg.
Keywords
Acoustic properties and phonons
Liquid alloys and liquid metals
Diffraction and scattering measurements
Microstructure
Phases and equilibria
Structure
X-rays
Language
eng
Resource Type journal article
Publisher
Elsevier B.V.
Date of Issued 2007-10-15
Rights
Copyright (c) 2007 Published by Elsevier B.V.
Publish Type Author’s Original
Access Rights open access
Source Identifier
[ISSN] 0022-3093
[DOI] 10.1016/j.jnoncrysol.2007.05.124
[NCID] AA00703560
[DOI] http://dx.doi.org/10.1016/j.jnoncrysol.2007.05.124