研究目的
Investigating the formation of vortex and anti-vortex patterns in the local current density of graphene quantum dots under an external perpendicular magnetic field for different geometries and edge configurations.
研究成果
The study demonstrates that graphene quantum dots under a perpendicular magnetic field exhibit vortex and anti-vortex patterns in the local current density, similar to those observed in semiconductor quantum dots and mesoscopic superconductors. The patterns are influenced by the quantum dot's geometry and edge configuration, with anti-crossings in the energy spectrum indicating the combination of different angular momentum states in non-circular geometries.
研究不足
The study is limited to theoretical modeling and does not include experimental validation. The computational modeling is constrained by the size of the quantum dots considered, and the results may not fully capture all physical phenomena at larger scales or different conditions.
