Liquid Structure of Tantalum under Internal Negative Pressure

K. Katagiri, N. Ozaki, S. Ohmura, B. Albertazzi, Y. Hironaka, Y. Inubushi, K. Ishida, M. Koenig, K. Miyanishi, H. Nakamura, M. Nishikino, T. Okuchi, T. Sato, Y. Seto, K. Shigemori, K. Sueda, Y. Tange, T. Togashi, Y. Umeda, M. YabashiT. Yabuuchi, R. Kodama

    Research output: Contribution to journalArticlepeer-review

    Abstract

    In situ femtosecond x-ray diffraction measurements and ab initio molecular dynamics simulations were performed to study the liquid structure of tantalum shock released from several hundred gigapascals (GPa) on the nanosecond timescale. The results show that the internal negative pressure applied to the liquid tantalum reached -5.6 (0.8) GPa, suggesting the existence of a liquid-gas mixing state due to cavitation. This is the first direct evidence to prove the classical nucleation theory which predicts that liquids with high surface tension can support GPa regime tensile stress.

    Original languageEnglish
    Article number175503
    JournalPhysical Review Letters
    Volume126
    Issue number17
    DOIs
    Publication statusPublished - Apr 28 2021

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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