- 著者
 
          - 
             
             乾 雅祝
             
             石川 大介
             
             田村 剛三郎
             
          
 
          
          
          - 出版者
 
          - 日本高圧力学会
 
          
          
          - 雑誌
 
          - 高圧力の科学と技術 (ISSN:0917639X)
 
          
          
          - 巻号頁・発行日
 
          - vol.18, no.4, pp.321-327, 2008-11-20 (Released:2009-01-09)
 
          
          
          - 参考文献数
 
          - 28
 
          
          
        
        
        
        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.