Abstract
A sharp increase of the Faraday rotation with increasing incident radiation power is observed in a band near the fundamental absorption edge of the ferromagnetic semiconductor CdCr2 Se4. The magnitude of the effect is a nonmonotonic function of the radiation intensity. The effect is explained by narrowing of an excitonic resonance as a result of screening of the internal electric fields by photoexcited carriers.
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Pis’ma Zh. Éksp. Teor. Fiz. 66, No. 6, 409–413 (25 September 1997)
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Golik, L.L., Kun’kova, Z.E. Nonlinear Faraday effect near the fundamental absorption edge in the ferromagnetic semiconductor CdCr2 Se4 . Jetp Lett. 66, 437–441 (1997). https://doi.org/10.1134/1.567534
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DOI: https://doi.org/10.1134/1.567534