Nonlocality, Correlations, and Magnetotransport in a Spatially Modulated Two-Dimensional Electron Gas

TL;DR

This paper reveals that classical magnetotransport phenomena in weakly modulated 2D electron gases are fundamentally linked to the intrinsic correlation functions of a homogeneous electron gas, bridging classical and quantum perspectives.

Contribution

It introduces a theory emphasizing nonlocal response, unifying classical and quantum approaches to magnetotransport in spatially modulated 2D electron systems.

Findings

Classical commensurability phenomena are tied to intrinsic correlation functions.

Nonlocal response is crucial for understanding magnetotransport.

Bridges gap between classical and quantum models.

Abstract

It is shown that the classical commensurability phenomena in weakly modulated two-dimensional electron systems is a manifestation of the intrinsic properties of the correlation functions describing a homogeneous electron gas in a magnetic field. The theory demonstrates the importance for consideration of nonlocal response and removes the gap between classical and quantum approaches to magnetotransport in such systems.