New collective zero-resistance states in GaAs/AlGaAs heterostructures

TL;DR

This paper reports the discovery of new collective zero-resistance states in ultrapure GaAs/AlGaAs heterostructures under combined magnetic and microwave fields, explained by a non-perturbative self-organization theory.

Contribution

It introduces a non-perturbative theoretical framework to explain collective zero-resistance states in 2DEG systems under specific conditions, advancing understanding of quantum transport phenomena.

Findings

Zero-resistance states observed in ultrapure 2DEG under magnetic and microwave fields

Theoretical explanation based on self-organization and open orbits

Analogies drawn to other anomalous physical phenomena

Abstract

Exponentially small resistance in crossed static magnetic and microwave fields occurs in ultrapure two dimensional electron gases (2DEG), while in less pure systems the magnetoresistance oscillates but is always positive. A non-perturbative theory of self-organization explains the new collective states in terms of open orbits. There are analogies to many other anomalous physical phenomena, as well as to scaling and evolutionary principles of biophysics.