Suppression of charge density wave order by disorder in Pd-intercalated ErTe${}_3$

Abstract

Disorder is generically anticipated to suppress long range charge density wave (CDW) order. We report transport, thermodynamic, and scattering experiments on Pd${}_x$ErTe${}_3$, a model CDW system with disorder induced by intercalation. The pristine parent compound ($x=0$) shows two separate, mutually perpendicular, incommensurate unidirectional CDW phases setting in at 270 K and 165 K. Here we track the suppression of signatures corresponding to these two parent transitions as the Pd concentration increases. At the largest values of $x$, we observe complete suppression of long range CDW order in favor of superconductivity. We also report evidence from electron and x-ray diffraction which suggests a tendency toward short-range ordering along both wavevectors which persists even well above the crossover temperature. Pd${}_x$ErTe${}_3$ provides a promising model system for the study of the interrelation of charge order and superconductivity in the presence of quenched disorder.

9 pages, 7 figures

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Cited by in corpus (16)

• Role of equilibrium fluctuations in light-induced order
• Superconductivity and charge-density wave formation in lithium intercalated 2H-LixTaS2
• Bragg glass signatures in Pd${}_x$ErTe${}_3$ with X-ray diffraction Temperature Clustering (X-TEC)
• Diffuse Scattering from Correlated Electron Systems
• Large Negative Magnetoresistance in Antiferromagnetic Gd2Se3
• Anomalous thermal transport and violation of Wiedemann-Franz law in the critical regime of a charge density wave transition
• Monoclinic LaSb${}_2$ Superconducting Thin Films
• Robust Charge-Density Wave Correlations in Optimally-Doped YBa2Cu3Oy
• Revealing Pronounced Electron-Hole Fermi Pockets in the Charge Density Wave Semimetal LaTe3
• Anomalous superfluid density in a disordered charge density wave material: Pd-intercalated ErTe${}_3$
• Spin-stripe order tied to the pseudogap phase in La1.8-xEu0.2SrxCuO4
• Impact of disorder in the charge-density-wave state of Pd-intercalated ErTe${}_3$ revealed by the electrodynamic response
• Superconducting Sn-Intercalated TaSe${}_2$: Structural Diversity Obscured by Routine Characterization Techniques
• Structural Phase Separation and Enhanced Superconductivity in La1.875Ba0.125CuO4 under Uniaxial Strain
• Evolution of charge-density-wave soft phonon modes in ${\mathrm{Pd}}_x{\mathrm{ErTe}}_3$
• Charge order in the Pr substituted YBa${}_2$Cu${}_3$O${}_7$ from high-field Hall effect measurements