Control of the persistent currents in two interacting quantum rings through the Coulomb interaction and inter-ring tunneling
arXiv:0810.5726 · doi:10.1103/PhysRevB.78.195315
Abstract
The persistent current in two vertically coupled quantum rings containing few electrons is studied. We find that the Coulomb interaction between the rings in the absence of tunneling affects the persistent current in each ring and the ground state configurations. Quantum tunneling between the rings alters significantly the ground state and the persistent current in the system.
accepted for publication in Phys. Rev. B
References in corpus (4)
- Current-spin-density functional study of persistent currents in quantum rings
- Artificial molecular quantum rings: Spin density functional theory calculations
- Electron-acoustic-phonon scattering and electron relaxation in two-coupled quantum rings
- Vertically coupled double quantum rings at zero magnetic field
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- Quantum Transport in an Array of Mesoscopic Rings: Effect of Interface Geometry
- Distribution of Persistent Currents in a Multi-Arm Mesoscopic Ring
- Magnetic Response in a Zigzag Carbon Nanotube
- Magnetization of two coupled rings
- Artificial molecular quantum rings under magnetic field influence
- Magneto-transport in mesoscopic rings and cylinders: Effects of electron-electron interaction and spin-orbit coupling