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

2 Citations (Scopus)

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
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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