Nanocrystals of diluted magnetic semiconductors: Model for magnetic polaron

A. K. Bhattacharjee
Phys. Rev. B 51, 9912 – Published 15 April 1995
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Abstract

We present a simple model for the magnetic polaron associated with an electron-hole pair in a semimagnetic semiconductor quantum dot. An exactly soluble Hamiltonian based on the effective-mass approximation is used to calculate the equilibrium properties. The polaron binding energy decreases with increasing temperature or magnetic field. Low-temperature magnetization and luminescence polarization show rapid saturation with magnetic field. Strong light-induced enhancement of magnetization is predicted.

  • Received 14 September 1994

DOI:https://doi.org/10.1103/PhysRevB.51.9912

©1995 American Physical Society

Authors & Affiliations

A. K. Bhattacharjee

  • Laboratoire de Physique des Solides, Université Paris(enSud, 91405 Orsay, France

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Vol. 51, Iss. 15 — 15 April 1995

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