Electron Transport in Magnetic-Field-Induced Quasi-One-Dimensional Electron Systems in Semiconductor Nanowhiskers

TL;DR

This paper investigates electron tunneling in semiconductor nanowhiskers under strong magnetic fields, revealing distinct behaviors of bulk and edge states and their impact on conductance.

Contribution

It demonstrates that edge state interactions are weaker than bulk states, and highlights the temperature independence of edge state conductance and the singular behavior of bulk states.

Findings

Edge states have much smaller interaction parameters than bulk states.

Tunneling conductance of edge states is nearly temperature-independent.

Bulk states exhibit singular behavior in tunneling conductance.

Abstract

Many-body effects on tunneling of electrons in semiconductor nanowhiskers are investigated in a magnetic quantum limit. We consider the system with which bulk and edge states coexist. We show that interaction parameters of edge states are much smaller than those of bulk states and the tunneling conductance of edge states hardly depends on temperature and the singular behavior of tunneling conductance of bulk states can be observed.