Single-exciton spectroscopy of semimagnetic quantum dots

J. Fernández-Rossier
Phys. Rev. B 73, 045301 – Published 3 January 2006

Abstract

A photoexcited II-VI semiconductor quantum dots doped with a few Mn spins is considered. The effects of spin-exciton interactions and the resulting multispin correlations on the photoluminescence are calculated by numerical diagonalization of the Hamiltonian, including exchange interaction between electrons, holes, and Mn spins, as well as spin-orbit interaction. The results provide a unified description of recent experiments on the photoluminesnce of dots with one and many Mn atoms as well as optically induced ferromagnetism in semimagnetic quantum dots.

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  • Received 1 November 2005

DOI:https://doi.org/10.1103/PhysRevB.73.045301

©2006 American Physical Society

Authors & Affiliations

J. Fernández-Rossier

  • Instituto Universitario de Materiales de Alicante, Departamento de Física Aplicada, Universidad de Alicante, San Vicente del Raspeig, 03690 Spain

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Issue

Vol. 73, Iss. 4 — 15 January 2006

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