One-Component Order Parameter in URu$_2$Si$_2$ Uncovered by Resonant Ultrasound Spectroscopy and Machine Learning

11 Mar 2020 Ghosh Sayak Matty Michael Baumbach Ryan Bauer Eric D. Modic K. A. Shekhter Arkady Mydosh J. A. Kim Eun-Ah Ramshaw B. J.

The unusual correlated state that emerges in URu$_2$Si$_2$ below T$_{HO}$ = 17.5 K is known as "hidden order" because even basic characteristics of the order parameter, such as its dimensionality (whether it has one component or two), are "hidden". We use resonant ultrasound spectroscopy to measure the symmetry-resolved elastic anomalies across T$_{HO}$... (read more)

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  • STRONGLY CORRELATED ELECTRONS
  • DATA ANALYSIS, STATISTICS AND PROBABILITY