Plastic flow of persistent currents in two dimensional strongly interacting systems
Richard Berkovits, Yshai Avishai
TL;DR
This paper investigates how increasing interactions in two-dimensional systems cause a transition from diffusive to ordered, plastic flow of persistent currents, resembling dislocation-driven charge density wave movement.
Contribution
It reveals the transition mechanism from diffusive to plastic flow in strongly interacting 2D systems and characterizes the flow as dislocation-mediated charge density wave movement.
Findings
Flow transitions from diffusive to ordered with increased interaction strength
Plastic flow involves dislocations in the charge density wave
Charge density wave develops at low densities
Abstract
The local persistent current in two dimensional strongly interacting systems is investigated. As the interaction strength is enhanced the current in the sample undergoes a transition from diffusive to ordered flow. The strong interacting flow has the characteristics of a plastic flow through dislocations in the pinned charge density wave which develops in the system at low densities.
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