Manifesting pseudo-spin polarization on the edge of graphene via field emission image

TL;DR

This paper investigates how field emission images from graphene under magnetic fields reveal Landau level structures and edge effects, with potential control via gate voltage.

Contribution

It introduces a method to analyze graphene's edge states through field emission imaging, highlighting the influence of magnetic fields and edge potentials.

Findings

Emission images reveal Landau level structures.

Edge potential shifts affect emission patterns.

Gate voltage can manipulate emission characteristics.

Abstract

We obtain the wave function of field emission from graphene in magnetic field. The emission image reveals structure of the Landau levels and depends on the phase difference between two sub-lattices. The emission pattern is sensitive to the edge potential shift, so a gate voltage can manipulate that.