scholarly journals Analytic model of the energy spectrum of a graphene quantum dot in a perpendicular magnetic field

2008 ◽  
Vol 78 (19) ◽  
Author(s):  
S. Schnez ◽  
K. Ensslin ◽  
M. Sigrist ◽  
T. Ihn
Keyword(s):  
Magnetic Field ◽  
Energy Spectrum ◽  
Quantum Dot ◽  
Perpendicular Magnetic Field ◽  
Analytic Model ◽  
Graphene Quantum Dot

scholarly journals Transport through a strongly coupled graphene quantum dot in perpendicular magnetic field

2011 ◽  
Vol 6 (1) ◽  
Author(s):  
Johannes Güttinger ◽  
Christoph Stampfer ◽  
Tobias Frey ◽  
Thomas Ihn ◽  
Klaus Ensslin
Keyword(s):  
Magnetic Field ◽  
Quantum Dot ◽  
Perpendicular Magnetic Field ◽  
Strongly Coupled ◽  
Graphene Quantum Dot

scholarly journals Quasi-bound states in an NPN-type nanometer-scale graphene quantum dot under a magnetic field

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Yueting Pan ◽  
Haijiao Ji ◽  
Xin-Qi Li ◽  
Haiwen Liu
Keyword(s):  
Magnetic Field ◽  
Energy Spectrum ◽  
Quantum Dot ◽  
State Energy ◽  
Bound State ◽  
Scanning Tunneling ◽  
Bound State Energy ◽  
Graphene Quantum Dot ◽  
The Magnetic Field ◽  
Quasi Bound State

AbstractWe solve the quasi-bound state-energy spectra and wavefunctions of an NPN-type graphene quantum dot under a perpendicular magnetic field. The evolution of the quasi-bound state spectra under the magnetic field is investigated using a Wentzel–Kramers–Brillouin approximation. In numerical calculations, we also show that the twofold energy degeneracy of the opposite angular momenta breaks under a weak magnetic field. As the magnetic field strengthens, this phenomenon produces an observable splitting of the energy spectrum. Our results demonstrate the relation between the quasi-bound state-energy spectrum in graphene quantum dots and magnetic field strength, which is relevant to recent measurements in scanning tunneling microscopy.

scholarly journals Enhancing the energy spectrum of graphene quantum dot with external magnetic and Aharonov-Bohm flux fields

Heliyon ◽  
2019 ◽  
Vol 5 (8) ◽  
pp. e02224 ◽  
Author(s):  
Fernando Adan Serrano Orozco ◽  
Juan Gerardo Avalos Ochoa ◽  
Xochitl Cabrera Rivas ◽  
Jose Luis Cuevas Figueroa ◽  
Hugo Moises Martinez Carrada
Keyword(s):  
Energy Spectrum ◽  
Quantum Dot ◽  
Graphene Quantum Dot ◽  
Aharonov Bohm
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