Ultrasound is a powerful means to study numerous phenomena of condensed-matter physics as acoustic waves couple strongly to structural, magnetic, orbital, and charge degrees of freedom. In this paper, we present such technique combined with single-turn coils (STC) which generate magnetic fields beyond 100 T with the typical pulse duration of 6 us. As a benchmark of this technique, the ultrasound results for MnCr2S4, Cu6[Si6O18]6H2O, and liquid oxygen are shown. The resolution for the relative sound-velocity change in the STC is estimated as Delta v/v~10^-3, which is sufficient to study various field-induced phase transitions and critical phenomena.
@article{arxiv.2502.12533,
title = {Ultrasound measurement technique for the single-turn-coil magnets},
author = {T. Nomura and A. Hauspurg and D. I. Gorbunov and A. Miyata and E. Schulze and S. A. Zvyagin and V. Tsurkan and Y. H. Matsuda and Y. Kohama and S. Zherlitsyn},
journal= {arXiv preprint arXiv:2502.12533},
year = {2025}
}