不規則性をもつ結晶，超イオン導電体，非晶質，ガラス，融体の構造解析―不規則系・ランダム系の結晶学―２．非周期系の局所構造・規則性 高エネルギーＸ線による超臨界金属流体の小角散乱

Abstract

Small angle X-ray scattering (SAXS) measurements for expanded fluid Hg have been carried out in wide density region including the metal-non-metal (M-NM) transition region at 9.0g cm-3and the liquid-vapor critical region at 5.8g cm-3using synchrotron radiation at SPring-8. We could observe the liquid-vapor critical scattering intensity in fluid Hg with good statistics and also SAXS intensity in the M-NM transition region. The latter result suggests that characteristic fluctuations are induced in the M-NM transition in expanded fluid Hg.