Ultrasonic Study of the Hidden Order and Heavy-Fermion State in URu${}_2$Si${}_2$ with Hydrostatic Pressure, Rh-doping, and High-Magnetic Fields

Abstract

This paper reports recent progress of ultrasonic measurements on URu${}_2$Si${}_2$, including ultrasonic measurements under hydrostatic pressure, in pulsed-magnetic fields, and the effect of Rh-substitution. The observed changes of the elastic responses shed light on the orthorhombic-lattice instability with ${\Gamma }_3$-symmetry existing within the hidden order and the hybridized 5$f$-electron states of URu${}_2$Si${}_2$.

13 pages, 8 figures

References in corpus (7)

• Rotational Symmetry Breaking in the Hidden-Order Phase of URu2Si2
• Emergent Rank-5 'Nematic' Order in URu2Si2
• Antiferromagnetic critical pressure in URu2Si2 under hydrostatic conditions
• Neutron Scattering Study on Competition between Hidden Order and Antiferromagnetism in U(Ru_{1-x}Rh_x)_2Si_2 (x <= 0.05)
• Importance of In-Plane Anisotropy in the Quasi Two-Dimensional Antiferromagnet BaNi${}_2$V${}_2$O${}_8$
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• Hybridization-Driven Orthorhombic Lattice Instability in URu2Si2

Cited by in corpus (4)

• One-Component Order Parameter in URu${}_2$Si${}_2$ Uncovered by Resonant Ultrasound Spectroscopy and Machine Learning
• Electronic properties of a heavy-fermion U(Ru0.92Rh0.08)2Si2 single crystal
• Field-induced phases in a heavy-fermion U(Ru${}_{0.92}$Rh${}_{0.08}$)${}_2$Si${}_2$ single crystal
• Elastic properties of hidden order in URu${}_{\text{2}}$Si${}_{\text{2}}$ are reproduced by a staggered nematic