Nanocrystals of diluted magnetic semiconductors: Model for magnetic polaron
- 15 April 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 51 (15) , 9912-9916
- https://doi.org/10.1103/physrevb.51.9912
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.Keywords
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