Heliyon | |
Enhancing the energy spectrum of graphene quantum dot with external magnetic and Aharonov-Bohm flux fields | |
Juan Gerardo Avalos Ochoa1  Fernando Adan Serrano Orozco2  Jose Luis Cuevas Figueroa2  Xochitl Cabrera Rivas2  Hugo Moises Martinez Carrada3  | |
[1] Corresponding author.;Instituto Politécnico Nacional, Escuela Superior de Ingeniería Mecanica y Eléctrica Unidad Culhuacan, CDMX 04430, Mexico;Yachay Tech Univerity, School of Physical Sciences and Nanotechnology, 100115, Urcuqui, Ecuador; | |
关键词: Quantum mechanics; Dirac-Weyl equation; Energy eigenvalues; Graphene quantum dot; AB-flux field; Landau Levels; | |
DOI : | |
来源: DOAJ |
【 摘 要 】
In this paper, we have to apply the Dirac-Weyl equation to find the analytical energy eigenvalues of the graphene quantum dot interacting in the presence of AB-flux field and external magnetic field. We find that the energy eigenvalue of the graphene quantum dot decreases with both magnetic and AB-flux field but the effect of AB-flux field is more dominant. By ameliorating the intensity of the AB-flux field and keeping the magnetic field constant, the quantum-dot states entangled to produce Landau Levels. We show that besides using the graphene sheet and external magnetic field, the Aharonov-Bohm AB-flux field could as well be used to manipulate the carriers state energies in graphene.
【 授权许可】
Unknown