Absence of a Bulk Thermodynamic Phase Transition to a Density Wave Phase in UTe2

Abstract

Competing and intertwined orders are ubiquitous in strongly correlated electron systems, such as the charge, spin, and superconducting orders in the high-Tc cuprates. Recent scanning tunneling microscopy (STM) measurements provide evidence for a charge density wave (CDW) that coexists with superconductivity in the heavy Fermion metal UTe2. This CDW persists up to at least 7.5 K and, as a CDW breaks the translational symmetry of the lattice, its disappearance is necessarily accompanied by thermodynamic phase transition. Here, we report high-precision thermodynamic measurements of the elastic moduli of UTe2. We observe no signature of a phase transition in the elastic moduli down to a level of 1 part in 10^7, strongly implying the absence of bulk CDW order in UTe2. We suggest that the CDW and associated pair density wave (PDW) observed by STM may be confined to the surface of UTe2.

References in corpus (31)

• Long-range incommensurate charge fluctuations in (Y,Nd)Ba2Cu3O(6+x)
• CsV${}_3$Sb${}_5$: a ${\mathbb{Z}}_2$ topological kagome metal with a superconducting ground state
• A Four-Unit-Cell Periodic Pattern of Quasiparticle States Surrounding Vortex Cores in Bi2Sr2CaCu2O8+d
• Magnetic-field-induced charge-stripe order in the high temperature superconductor YBa2Cu3Oy
• Roton pair density wave and unconventional strong-coupling superconductivity in a topological kagome metal
• Spontaneously polarized half-gapped superconductivity
• Microscopic evidence for a chiral superconducting order parameter in the heavy fermion superconductor UTe2
• Three-Dimensional Charge Density Wave Order in YBa2Cu3O6.67 at High Magnetic Fields
• Resonant X-ray Scattering Study of Charge Density Wave Correlations in YBa${}_2$Cu${}_3$O${}_{6+x}$
• Extreme magnetic field-boosted superconductivity
• Multiple superconducting phases in a nearly ferromagnetic system
• Thermodynamic Evidence for a Two-Component Superconducting Order Parameter in Sr${}_2$RuO${}_4$
• Detection of a Pair Density Wave State in UTe${}_2$
• Multiple Superconducting Phases and Unusual Enhancement of the Upper Critical Field in UTe2
• Superconducting Properties of Heavy Fermion UTe${}_2$ Revealed by ${}^{125}$Te-Nuclear Magnetic Resonance
• Single-component superconducting state in UTe2 at 2 K
• 125Te-NMR Study on a Single Crystal of Heavy Fermion Superconductor UTe2
• First Observation of de Haas-van Alphen Effect and Fermi Surfaces in Unconventional Superconductor UTe2
• Magnetic-field sensitive charge density wave orders in the superconducting phase of UTe2
• Anomalous normal fluid response in a chiral superconductor UTe2
• Spatially inhomogeneous superconductivity in UTe2
• Avoided Valence Transition in a Plutonium Superconductor
• Single-Component Superconductivity in UTe${}_2$ at Ambient Pressure
• $c$-axis transport in UTe${}_2$: Evidence of Three Dimensional Conductivity Component
• Effect of uranium deficiency on normal and superconducting properties in unconventional superconductor UTe${}_2$
• Competition between Superconductivity and Charge Density Wave Ordering in the Lu${}_5$Ir${}_4$(Si${}_{1-x}$Ge${}_x$)${}_{10}$ Alloy System
• Thermodynamic signatures of short-range magnetic correlations in UTe${}_2$
• Visualizing the melting of the charge density wave in UTe2 by generation of pairs of topological defects with opposite winding
• Resonant Ultrasound Spectroscopy for Irregularly-Shaped Samples and its Application to Uranium Ditelluride
• Inhomogeneous high temperature melting and decoupling of charge density waves in spin-triplet superconductor UTe2
• Absence of a bulk charge density wave signature in x-ray measurements of UTe${}_2$

Cited by in corpus (7)

• Incommensurate antiferromagnetism in UTe2 under pressure
• Absence of a bulk charge density wave signature in x-ray measurements of UTe${}_2$
• Evidence for reduced periodic lattice distortion within the Sb-terminated surface layer of the kagome metal CsV${}_3$Sb${}_5$
• Quasiparticle interference and spectral function of the UTe${}_2$ superconductive surface band
• Magnetic excitations and absence of charge order in the van der Waals ferromagnet Fe${}_{4.75}$GeTe${}_2$
• Visualizing the Odd-parity Superconducting Order Parameter and its Quasiparticle Surface Band in UTe2
• Evidence of intertwined pair density and charge density wave orders in UTe2