Coherent manipulation of magnetization precession in ferromagnetic semiconductor (Ga,Mn)As with successive optical pumping

Y. Hashimoto; H. Munekata

doi:10.1063/1.3030988

Coherent manipulation of magnetization precession in ferromagnetic semiconductor (Ga,Mn)As with successive optical pumping

Materials Science 2009-11-13 v1

Authors: Y. Hashimoto , H. Munekata

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Abstract

We report dynamic control of magnetization precession by light alone. A ferromagnetic (Ga,Mn)As epilayer was used for experiments. Amplitude of precession was modulated to a large extent by tuning the time interval between two successive optical pump pulses which induced torques on magnetization through a non-thermal process. Nonlinear effect in precession motion was also discussed.

Keywords

magnetization precession coherent control ferromagnetic semiconductor (Ga,Mn)As optical pumping non-thermal process

Cite

@article{arxiv.0810.3728,
  title  = {Coherent manipulation of magnetization precession in ferromagnetic semiconductor (Ga,Mn)As with successive optical pumping},
  author = {Y. Hashimoto and H. Munekata},
  journal= {arXiv preprint arXiv:0810.3728},
  year   = {2009}
}

Comments

3 pages, 4 figures, Submitted to APL

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