Effect of magnetic field on the lasing threshold of a semimagnetic polariton condensate
arXiv:1707.00252 · doi:10.1103/PhysRevB.96.125403
Abstract
We evidence magnetic field triggered polariton lasing in a microcavity containing semimagnetic quantum wells. This effect is associated with a decrease of the polariton lasing threshold power in magnetic field. The observed magnetic field dependence of the threshold power systematically exhibits a minimum which only weakly depends on the zero-field photon-exciton detuning. These results are interpreted as a consequence of the polariton giant Zeeman splitting which in magnetic field: leads to a decrease of the number of accessible states in the lowest polariton branch by a factor of two, and substantially changes the photon-exciton detuning.
arXiv comment5 pages, 4 figures
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