Collect. Czech. Chem. Commun. 2005, 70, 605-620

Far-Infrared Absorption of Self-Assembled Semiconductor Rings

Josep Planelles* and Juan I. Climente

Departament de Ciències Experimentals, UJI, Box 224, E-12080 Castelló, Spain


A theoretical description of far-infrared spectroscopy experiments on self-assembled quantum rings in a magnetic field [Lorke A. et al.: Phys. Rev. Lett. 2000, 84, 2223] is reported which, for the first time, accounts for the full set of experimental resonances. In calculations a 3D effective-mass model with a realistic finite step-like confinement potential, including strain and Coulomb effects is used. A bimodal distribution of ring sizes is assumed.

Keywords: Quantum ring; Quantum dot; Magnetic properties; Absorption spectroscopy; Coulomb integrals.

References: 33 live references.