Abstract
Heating of the spin system of magnetic Mn ions by means of photoexcited carriers has been studied in undoped (Zn, Mn)Se/(Zn, Be)Se multiple quantum well structures. Elevated spin temperature of the magnetic ions has been documented by a suppression of the giant Zeeman splitting of excitonic states measured in photoluminescence and reflectivity spectra. Low densities of photoexcitation (about 1 ) induce strong heating of the Mn spin system. The heating shows a strong dependence on the Mn content varying from 0.004 to 0.06. It decreases with increasing Mn content due to the shortening of the spin-lattice relaxation time.
- Received 6 July 2001
DOI:https://doi.org/10.1103/PhysRevB.65.035313
©2001 American Physical Society