Abstract
Based on the finite element method, we present a numerical study of the Aharonov–Bohm (AB) oscillations and electronic energy spectrum for the system of a two-dimensional elliptical quantum ring (EQR) nanostructure pierced by a static magnetic flux ϕ in the presence of local charge impurities. Strong changes are observed in the energy spectrum and in the amplitude of the AB oscillations depending on both the geometrical parameters of the EQR and the strengths, locations and screening of impurities embedded in the system. Energy gaps are opened at the integer values of ϕ due to elliptical confinement, while the opening of the gaps at the half-integer values of ϕ depends on the location of impurities. Impurities can shift the low-lying energy levels in various ways depending on their azimuthal locations.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
