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2006

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/10570

Optical response of two-dimensional few-electron concentric double quantum rings: A local-spin-density-functional theory study

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http://dx.doi.org/10.1103/PhysRevB.74.193309

Abstract

We have investigated the dipole charge- and spin-density response of few-electron two-dimensional concentric nanorings as a function of the intensity of a erpendicularly applied magnetic field. We show that the dipole response displays signatures associated with the localization of electron states in the inner and outer ring favored by the perpendicularly applied magnetic field. Electron localization produces a more fragmented spectrum due to the appearance of additional edge excitations in the inner and outer ring.

Subject

Semiconductors, Spin (Física nuclear), Electrònica quàntica

Subject (English)

Semiconductors, Nuclear spin, Quantum electronics

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Articles publicats en revistes (Física Quàntica i Astrofísica)

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MALET I GIRALT, Francesc, et al. Optical response of two-dimensional few-electron concentric double quantum rings: A local-spin-density-functional theory study. Physical Review B. 2006. Vol. 74, num. 193309-1-193309-4. ISSN 1098-0121. [consulted: 6 of June of 2026]. Available at: https://hdl.handle.net/2445/10570

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