2022/12/23 by Stephen P. Shipman, Shipman, Stephen P., Jorge Villalobos +1
Materials Science · Physics and Astronomy · Engineering · #Graphene research and applications #Quantum and electron transport phenomena #Molecular Junctions and Nanostructures
paper · pdf · doi:10.48550/arxiv.2212.12125
In a tight-binding model of AA-stacked bilayer graphene, it is demonstrated that a bound defect state within the region of continuous spectrum can exist stably with respect to variations in the strength of a perpendicular magnetic field. This is accomplished by creating a defect that is compatible with the interlayer coupling, thereby shielding the bound state from the effects of the continuous spectrum, which varies erratically in a pattern known as the Hofstadter butterfly.