Negative electronic compressibility enables electrically-induced charge density waves in a two-dimensional electron liquid

Abstract

We show that the negative electronic compressibility of two-dimensional electronic systems at sufficiently low density enables the generation of charge density waves through the application of a uniform force field, provided no current is allowed to flow. The wavelength of the density oscillations is controlled by the magnitude of the (negative) screening length, and their amplitude is proportional to the applied force. Both are electrically tunable.

4 pages, 5 figures

References in corpus (8)

• Strong Coulomb drag and broken symmetry in double-layer graphene
• Coulomb drag
• Observation of intrinsic inverse spin Hall effect
• Spectroscopic evidence for negative electronic compressibility in a quasi-three-dimensional spin-orbit correlated metal
• Electronic compressibility of a graphene bilayer
• Negative Compressibility in Graphene-terminated Black Phosphorus Heterostructures
• Capacitance and compressibility of heterostructures with strong electronic correlations
• Anomalous Hall Coulomb drag of massive Dirac fermions

Cited by in corpus (4)

• Quantum supercapacitors
• Anisotropic charge density wave in electron-hole double monolayers: Applied to phosphorene
• Tuning the critical Li intercalation concentrations for MoX${}_2$ bilayer phase transitions
• Extended Einstein diffusion-mobility equation for two-dimensional Schrödinger-type quantum materials