Energy spectrum of the quasiparticle in a quantum dot formed by a superconducting pair potential under a magnetic field

1993 ◽  
Vol 85 (4) ◽  
pp. 321-326 ◽  
Author(s):  
Yukio Tanaka ◽  
Akira Hasegawa ◽  
Hideaki Takayanagi
Keyword(s):  
Magnetic Field ◽  
Energy Spectrum ◽  
Quantum Dot ◽  
Pair Potential

scholarly journals Magnetic field dependence of the low-energy spectrum of a two-electron quantum dot

2000 ◽  
Vol 62 (11) ◽  
pp. 7249-7256 ◽  
Author(s):  
C. E. Creffield ◽  
J. H. Jefferson ◽  
Sarben Sarkar ◽  
D. L. J. Tipton
Keyword(s):  
Magnetic Field ◽  
Energy Spectrum ◽  
Quantum Dot ◽  
Field Dependence ◽  
Magnetic Field Dependence ◽  
Low Energy ◽  
Electron Quantum

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.

Sign in / Sign up

Export Citation Format

Share Document