We studied the acoustic properties of liquid oxygen up to 90 T by means of ultrasound measurements. We observed a monotonic decrease of the sound velocity and an asymptotic increase of the sound attenuation when applying magnetic fields. The unusual attenuation, twenty times as large as the zero-field value, suggests strong fluctuations of the local molecular arrangement. We point out that the observed fluctuations are related to a liquid-liquid transition or crossover, from a small-magnetization to a large-magnetization liquid, which is characterized by a local-structure rearrangement. To investigate higher-field properties of liquid oxygen, we performed single-turn-coil experiments up to 180 T by means of the acoustic, dilatometric, magnetic, and optical techniques. We observed only monotonic changes of these properties, reflecting the absence of the proposed liquid-liquid transition in our experimental conditions.
@article{arxiv.2109.05189,
title = {Physical properties of liquid oxygen under ultrahigh magnetic fields},
author = {T. Nomura and A. Ikeda and M. Gen and A. Matsuo and K. Kindo and Y. Kohama and Y. H. Matsuda and S. Zherlitsyn and J. Wosnitza and H. Tsuda and T. C. Kobayashi},
journal= {arXiv preprint arXiv:2109.05189},
year = {2022}
}
Comments
10 pages, 10 figures. arXiv admin note: text overlap with arXiv:1906.01207