Structural Order and Melting of a Quasi-One-Dimensional Electron System

Abstract

We investigate the influence of confinement on the positional order of a quasi-1D electron system trapped on the surface of liquid helium. We find evidence that the melting of the Wigner solid (WS) depends on the confinement strength, as well as electron density and temperature. A reentrant solid-liquid-solid transition is observed for increasing electron density under constant electrostatic confinement. As the electron row number $N_y$ changes, varying commensurability results in a modulation of the WS order, even when $N_y$ is large (several tens). This is confirmed by Monte Carlo simulations.

References in corpus (3)

• Lane reduction in driven 2d-colloidal systems through microchannels
• Incipient Formation of an Electron Lattice in a Weakly-Confined Quantum Wire
• Formation of defects in multirow Wigner crystals

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• Controlled-NOT gate based on the Rydberg states of surface electrons
• Observation of the Rydberg resonance in surface electrons on superfluid helium confined in a 4-$\mu$m deep channel
• Plasmon Mode Engineering with Electrons on Helium
• Universal quantum gates by nonadiabatic holonomic evolution for the surface electron