Frequency-dependent Faraday rotation in CdMnTe

Butler, M. A.; Martin, S. J.; Baughman, R. J.
October 1986
Applied Physics Letters;10/27/1986, Vol. 49 Issue 17, p1053
Academic Journal
Optical Faraday rotation has been measured as a function of the frequency of an applied magnetic field in two compositions of the dilute magnetic semiconductor CdMnTe. A roll-off in response is observed with the roll-off frequency increasing with Mn concentration. The frequency dependence is fit well by a simple Debye relaxation model. This dependence is attributed to relaxation of the magnetization through interactions between the Zeeman and spin-spin energy reservoirs.


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