Femtosecond Coherent Control of Spin with Light in (Ga,Mn)As ferromagnets

M. D. Kapetanakis, I. E. Perakis, K. J. Wickey +2

Using density matrix equations of motion, we predict a femtosecond collective spin tilt triggered by nonlinear, near--ultraviolet ($\sim$3eV), coherent photoexcitation of (Ga,Mn)As…