Energy structure of quantum rings in a magnetic field

Citations Over TimeTop 10% of 2001 papers

Abstract

Electron and hole energy levels of self-assembled quantum rings [A. Lorke et al., Phys. Rev. Lett. 84, 4537 (2000)] in a magnetic field are calculated. We go beyond the simple two-dimensional ring model with parabolic confining potential and use the $\mathbf{k}\ensuremath{\cdot}\mathbf{p}$ method with rectangular band-offset potentials in three dimensions. The one-band model is employed for the electron states and the two-band Hamiltonian is used for the hole states. Our calculations describe qualitatively well the positions of experimental resonances found in the far-infrared transmission spectra. The calculated hole energy spectrum differs significantly from the electron one. This difference originates from the light-hole and heavy-hole intersubband mixing.

Related Papers

• → Higher-Order Rotation-Vibration Energies of Polyatomic Molecules. V(1962)108 cited
• → Understanding nuclear motions in molecules: Derivation of Eckart frame ro-vibrational Hamiltonian operators via a gateway Hamiltonian operator(2015)11 cited
• → Global analysis of composite particles(1980)2 cited
• → Burst spectra over a wide energy range(1996)1 cited
• → Effective Hamiltonian for a half-filled tetramerized ionic-Hubbard chain(2008)