Resonant ultrasound spectroscopy (RUS) is a powerful technique for measuring the full elastic tensor of a given material in a single experiment. Previously, this technique was limited to regularly-shaped samples such as rectangular parallelepipeds, spheres, and cylinders. We demonstrate a new method for determining the elastic moduli of irregularly-shaped samples, extending the applicability of RUS to a much larger set of materials. We apply this new approach to the recently-discovered unconventional superconductor UTe2 and provide its elastic tensor at both 300 and 4 kelvin.
@article{arxiv.2303.03473,
title = {Resonant Ultrasound Spectroscopy for Irregularly-Shaped Samples and its Application to Uranium Ditelluride},
author = {Florian Theuss and Gregorio de la Fuente Simarro and Avi Shragai and Gael Grissonnanche and Ian M. Hayes and Shanta Saha and Tatsuya Shishidou and Taishi Chen and Satoru Nakatsuji and Sheng Ran and Michael Weinert and Nicholas P. Butch and Johnpierre Paglione and B. J. Ramshaw},
journal= {arXiv preprint arXiv:2303.03473},
year = {2024}
}