Evidence for Charge Glass-like Behavior in Lightly Doped La_{2-x}Sr_{x}CuO_{4} at Low Temperatures

Abstract

A c-axis magnetotransport and resistance noise study in La_{1.97}Sr_{0.03}CuO_{4} reveals clear signatures of glassiness, such as hysteresis, memory, and slow, correlated dynamics, but only at temperatures (T) well below the spin glass transition temperature T_{sg}. The results strongly suggest the emergence of charge glassiness, or dynamic charge ordering, as a result of Coulomb interactions.

arXiv commenttitle changed, presentation improved, references added; to appear in Phys. Rev. Letters

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• Two-stage magnetic-field-tuned superconductor-insulator transition in underdoped La${}_{2-x}$Sr${}_x$CuO${}_4$
• Emergence of superconductivity from the dynamically heterogeneous insulating state in La_{2-x}Sr_{x}CuO_{4}
• Systematic Variations in the Charge-Glass-Forming Ability of Geometrically Frustrated $\theta$-(BEDT-TTF)${}_{2}X$ Organic Conductors
• Superstripes and complexity in high-temperature superconductors
• Non-Gaussian Noise in the In-Plane Transport of Lightly Doped La_{2-x}Sr_{x}CuO_4: Evidence for a Collective State of Charge Clusters
• Noise Predictions for STM in Systems with Local Electron Nematic Order
• Anomalous Noise in the Pseudogap Regime of YBa${}_2$Cu${}_3$O${}_{7-\delta }$
• Numerical observation of a glassy phase in the three-dimensional Coulomb glass
• Non-Gaussian resistance noise in the ferromagnetic insulating state of a hole doped manganite
• Large Positive Magnetoresistance of the Lightly Doped La_{2}CuO_{4} Mott Insulator
• Energy-dependent crossover from anisotropic to isotropic magnetic dispersion in lightly-doped La1.96Sr0.04CuO4
• Insulating and metallic spin glass in K${}_x$Fe${}_{2-\delta -y}$Ni${}_y$Se${}_2$ (0.06 $\le$ $y$ $\le$ 1.44) single crystals
• Competing orders suppressed by disorder around a hidden quantum critical point in cuprate high Tc superconductors
• Interplay between atomic fluctuations and charge density waves in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Evidence for Correlated Dynamics near the Berezinskii-Kosterlitz-Thouless-like Transition in Highly Underdoped La${}_{2-x}$Sr${}_x$CuO${}_4$
• Ferroelectricity in underdoped La-based cuprates
• Beyond being free: glassy dynamics of SrTiO${}_3$-based two-dimensional electron gas
• History dependent magnetoresistance in lightly doped La_{2-x}Sr_{x}CuO_{4} thin films
• Disorder Effects on Competition between Antiferromagnetism and Superconductivity in Cuprate Superconductors through the Enhancement in Charge Susceptibility
• Charge avalanches and depinning in the Coulomb glass: The role of long-range interactions