Resonant Ultrasound Spectroscopy for Irregularly Shaped Samples and Its Application to Uranium Ditelluride
Florian Theuss, Gregorio de la Fuente Simarro, Avi Shragai, G. Grissonnanche, Ian Hayes, Shanta Saha, Tatsuya Shishidou, Taishi Chen, Satoru Nakatsuji, Sheng Ran, M. Weinert, Nicholas P. Butch, Johnpierre Paglione, B. J. Ramshaw
Abstract
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 practically limited to regularly shaped samples such as rectangular parallelepipeds, spheres, and cylinders [W. M. Visscher et al. J. Acoust. Soc. Am. 90, 2154 (1991)JASMAN0001-496610.1121/1.401643]. 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 UTe_{2} and provide its elastic tensor at both 300 and 4 kelvin.