高圧力の科学と技術
Online ISSN : 1348-1940
Print ISSN : 0917-639X
特集 —非単純液体で高圧構造物性!—
金属-非金属転移を伴う超臨界流体水銀の静的・動的構造研究
乾 雅祝石川 大介田村 剛三郎
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ジャーナル フリー

2008 年 18 巻 4 号 p. 321-327

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We have carried out x-ray diffraction, small-angle x-ray scattering and high-resolution inelastic x-ray scattering measurements for supercritical fluid Hg accompanying the metal-nonmetal (M-NM) transition using synchrotron radiation at SPring-8. In these structural studies we have found an increase in the short-range correlation length and the dynamical sound velocity much faster than the adiabatic sound velocity in the M-NM transition region. These findings strongly suggest the existence of a peculiar fluctuation intrinsic to the M-NM transition in the fluid, which may reflect a first-order M-NM transition predicted by Landau, the winner of the Nobel Prize in physics.

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© 2008 日本高圧力学会
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