Nonviscous metallic liquid Se

V. V. Brazhkin, K. Funakoshi, M. Kanzaki, Y. Katayama

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    20 Citations (Scopus)

    Abstract

    Viscosity is one of the fundamental physical properties of liquids; for different melts it varies in an extremely wide range. Selenium is among the first elementary substances to have manifested, at compression, a phase transformation in the liquid state accompanied by melt metallization. Direct measurements by means of a real-time radiography show that the viscosity of liquid Se under pressure drops by 500 times to a very low level of 8 mPa s. This is the first case of viscosity measurements being performed both for a relatively viscous semiconducting state and a low-viscous metallic state of the same liquid substance. The viscosity of the Se melt strongly decreases with pressure along the melting curve in a semiconducting state and experiences a further significant drop at melt metallization. A similar phenomenon is expected to be observed in many chalcohenide, halogenide, and oxide melts.

    Original languageEnglish
    Article number245901
    JournalPhysical Review Letters
    Volume99
    Issue number24
    DOIs
    Publication statusPublished - Dec 12 2007

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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