Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Absence of E 2 g Nematic Instability and Dominant A 1 g Response in the Kagome Metal CsV 3 Sb 5

Journal Article · · Physical Review. X

Ever since the discovery of the charge density wave (CDW) transition in the kagome metal CsV 3 Sb 5 , the nature of its symmetry breaking has been under intense debate. While evidence suggests that the rotational symmetry is already broken at the CDW transition temperature ( T CDW ), an additional electronic nematic instability well below T CDW has been reported based on the diverging elastoresistivity coefficient in the anisotropic channel ( m E 2 g ). Verifying the existence of a nematic transition below T CDW is not only critical for establishing the correct description of the CDW order parameter, but also important for understanding low-temperature superconductivity. Here, we report elastoresistivity measurements of CsV 3 Sb 5 using three different techniques probing both isotropic and anisotropic symmetry channels. Contrary to previous reports, we find the anisotropic elastoresistivity coefficient m E 2 g is temperature independent, except for a step jump at T CDW . The absence of nematic fluctuations is further substantiated by measurements of the elastocaloric effect, which show no enhancement associated with nematic susceptibility. On the other hand, the symmetric elastoresistivity coefficient m A 1 g increases below T CDW , reaching a peak value of 90 at T * = 20 K . Our results strongly indicate that the phase transition at T * is not nematic in nature and the previously reported diverging elastoresistivity is due to the contamination from the A 1 g channel.

Published by the American Physical Society 2024
Research Organization:
University of Washington, Seattle, WA (United States)
Sponsoring Organization:
Beijing Natural Science Foundation; National Science Foundation (NSF); National Science Foundation of China (NSFC); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012311; SC0019443
OSTI ID:
2406980
Alternate ID(s):
OSTI ID: 2429610
Journal Information:
Physical Review. X, Journal Name: Physical Review. X Journal Issue: 3 Vol. 14; ISSN PRXHAE; ISSN 2160-3308
Publisher:
American Physical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (73)

Magnetic field dependence of the sensitivity of a type E (chromel–constantan) thermocouple journal March 1998
Observation of Electronic Nematicity Driven by the Three-Dimensional Charge Density Wave in Kagome Lattice KV3Sb5 journal June 2023
Massive Dirac fermions in a ferromagnetic kagome metal journal March 2018
What drives nematic order in iron-based superconductors? journal January 2014
Emerging symmetric strain response and weakening nematic fluctuations in strongly hole-doped iron-based superconductors journal August 2021
Twofold symmetry of c-axis resistivity in topological kagome superconductor CsV3Sb5 with in-plane rotating magnetic field journal November 2021
Electronic nature of charge density wave and electron-phonon coupling in kagome superconductor KV3Sb5 journal January 2022
Discovery of conjoined charge density waves in the kagome superconductor CsV3Sb5 journal October 2022
Chern Fermi pocket, topological pair density wave, and charge-4e and charge-6e superconductivity in kagomé superconductors journal November 2022
Optimized superconductivity in the vicinity of a nematic quantum critical point in the kagome superconductor Cs(V1-xTix)3Sb5 journal July 2023
Unconventional chiral charge order in kagome superconductor KV3Sb5 journal June 2021
Charge order landscape and competition with superconductivity in kagome metals journal November 2022
Giant anomalous Hall effect in a ferromagnetic kagome-lattice semimetal journal July 2018
Charge order and superconductivity in kagome materials journal December 2021
Rotation symmetry breaking in the normal state of a kagome superconductor KV3Sb5 journal January 2022
Three-state nematicity and magneto-optical Kerr effect in the charge density waves in kagome superconductors journal November 2022
Nematicity and nematic fluctuations in iron-based superconductors journal December 2022
Unidirectional coherent quasiparticles in the high-temperature rotational symmetry broken phase of AV3Sb5 kagome superconductors journal February 2023
Evidence for an odd-parity nematic phase above the charge-density-wave transition in a kagome metal journal January 2024
Correlated order at the tipping point in the kagome metal CsV3Sb5 journal January 2024
AV3Sb5 kagome superconductors journal May 2024
Cascade of correlated electron states in the kagome superconductor CsV3Sb5 journal September 2021
Time-reversal symmetry-breaking charge order in a kagome superconductor journal February 2022
Charge-density-wave-driven electronic nematicity in a kagome superconductor journal February 2022
Discovery of charge density wave in a kagome lattice antiferromagnet journal September 2022
Switchable chiral transport in charge-ordered kagome metal CsV3Sb5 journal October 2022
Optical manipulation of the charge-density-wave state in RbV3Sb5 journal June 2024
Piezoelectric-based apparatus for strain tuning journal June 2014
Measurement of the B1g and B2g components of the elastoresistivity tensor for tetragonal materials via transverse resistivity configurations journal June 2016
AC elastocaloric effect as a probe for thermodynamic signatures of continuous phase transitions journal August 2019
Frequency-dependent sensitivity of AC elastocaloric effect measurements explored through analytical and numerical models journal August 2020
Quenched disorder and vestigial nematicity in the pseudogap regime of the cuprates journal May 2014
Divergence of the quadrupole-strain susceptibility of the electronic nematic system YbRu 2 Ge 2 journal March 2019
Elastocaloric signature of nematic fluctuations journal September 2021
Elastocaloric signatures of symmetric and antisymmetric strain-tuning of quadrupolar and magnetic phases in DyB 2 C 2 journal August 2023
Kagome superconductors AV3Sb5 (A = K, Rb, Cs) journal September 2022
Electronic instabilities of kagome metals: Saddle points and Landau theory journal July 2021
Electronic nature of chiral charge order in the kagome superconductor Cs V 3 Sb 5 journal August 2021
Revealing the competition between charge density wave and superconductivity in CsV 3 Sb 5 through uniaxial strain journal October 2021
Low-energy effective theory and symmetry classification of flux phases on the kagome lattice journal October 2021
Theory of the charge density wave in A V 3 Sb 5 kagome metals journal December 2021
Concurrence of anomalous Hall effect and charge density wave in a superconducting topological kagome metal journal July 2021
Charge density wave order in the kagome metal AV3Sb5 (A=Cs,Rb,K) journal April 2022
Electron-phonon coupling in the charge density wave state of CsV3Sb5 journal April 2022
Anomalous thermoelectric effects and quantum oscillations in the kagome metal CsV3Sb5 journal May 2022
Loop currents in AV3Sb5 kagome metals: Multipolar and toroidal magnetic orders journal October 2022
Simultaneous formation of two-fold rotation symmetry with charge order in the kagome superconductor CsV3Sb5 by optical polarization rotation measurement journal November 2022
Theory of nematic charge orders in kagome metals journal April 2023
Topological insulator on the kagome lattice journal September 2009
Elastoresistive and elastocaloric anomalies at magnetic and electronic-nematic critical points journal March 2019
Nematic Quantum Critical Fluctuations in BaFe 2 − x Ni x As 2 journal October 2016
Unified Phase Diagram for Iron-Based Superconductors journal October 2017
Dominant In-Plane Symmetric Elastoresistance in CsFe 2 As 2 journal October 2020
Cs V 3 Sb 5 : A Z 2 Topological Kagome Metal with a Superconducting Ground State journal December 2020
Quantum Transport Evidence of Topological Band Structures of Kagome Superconductor CsV 3 Sb 5 journal November 2021
Analysis of Charge Order in the Kagome Metal A V 3 Sb 5 ( A = K , Rb , Cs ) journal November 2021
Charge Density Wave in Kagome Lattice Intermetallic ScV6Sn6 journal November 2022
High Resolution Polar Kerr Effect Studies of CsV3Sb5 : Tests for Time-Reversal Symmetry Breaking below the Charge-Order Transition journal July 2023
Colossal c -Axis Response and Lack of Rotational Symmetry Breaking within the Kagome Planes of the CsV3Sb5 Superconductor journal May 2024
New kagome prototype materials: discovery of KV 3 Sb 5 , RbV 3 Sb 5 , and CsV 3 Sb 5 journal September 2019
Resolving the discrepancy between MOKE measurements at 1550-nm wavelength on kagome metal CsV3Sb5 journal January 2024
Emergent nematicity and intrinsic versus extrinsic electronic scattering processes in the kagome metal CsV3Sb5 journal June 2022
Coexistence of multiple stacking charge density waves in kagome superconductor CsV3Sb5 journal March 2023
Three-Dimensional Charge Density Wave and Surface-Dependent Vortex-Core States in a Kagome Superconductor CsV 3 Sb 5 journal August 2021
Observation of Unconventional Charge Density Wave without Acoustic Phonon Anomaly in Kagome Superconductors A V 3 Sb 5 ( A = Rb , Cs) journal September 2021
Fermi Surface Mapping and the Nature of Charge-Density-Wave Order in the Kagome Superconductor CsV 3 Sb 5 journal November 2021
Nematicity with a twist: Rotational symmetry breaking in a moiré superlattice journal August 2020
Giant, unconventional anomalous Hall effect in the metallic frustrated magnet candidate, KV 3 Sb 5 journal July 2020
Mechanism of exotic density-wave and beyond-Migdal unconventional superconductivity in kagome metal AV3Sb5(A = K, Rb, Cs) journal April 2022
Divergent Nematic Susceptibility in an Iron Arsenide Superconductor journal August 2012
Ubiquitous signatures of nematic quantum criticality in optimally doped Fe-based superconductors journal May 2016
Intertwined Vestigial Order in Quantum Materials: Nematicity and Beyond journal March 2019
Nematic Fermi Fluids in Condensed Matter Physics journal August 2010

Similar Records

Fraction of χ c Decays in Prompt J / ψ Production Measured in p Pb Collisions at s NN = 8.16 TeV
Journal Article · Thu Mar 07 19:00:00 EST 2024 · Physical Review Letters · OSTI ID:2474405

Measurement of the Centrality Dependence of the Dijet Yield in p + Pb Collisions at s NN = 8.16 TeV with the ATLAS Detector
Journal Article · Wed Mar 06 19:00:00 EST 2024 · Physical Review Letters · OSTI ID:2345952

Observation of Structures in the Processes e + e ω χ c 1 and ω χ c 2
Journal Article · Thu Apr 18 20:00:00 EDT 2024 · Physical Review Letters · OSTI ID:2338203