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Strong Excitation Effect of Excitonic Magnetic Polarons in Cd 1—x Mn x Te
Author(s) -
Kuroda T.,
Minami F.,
Seto S.
Publication year - 2002
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200201)229:2<757::aid-pssb757>3.0.co;2-w
Subject(s) - zeeman effect , polaron , spins , exciton , condensed matter physics , excitation , photoluminescence , magnetic semiconductor , spin (aerodynamics) , spin flip , spin polarization , materials science , physics , atomic physics , magnetic field , scattering , electron , doping , optoelectronics , quantum mechanics , thermodynamics , optics
We carried out time‐resolved magneto‐photoluminescence experiments in a diluted magnetic semiconductor Cd 0.9 Mn 0.1 Te with varying exciton density. We found a reduction of the Zeeman shift and of the binding energy of magnetic polarons under strong excitation condition. The spectral feature is interpreted by the heating effect of manganese spins. Polarization dependence of the spin heating is observed for the first time, revealing the contribution of spin flip between excitons and magnetic ions to the heating process.