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

Y. Hashimoto, H. Munekata

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

We report the 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 nonthermal process. Nonlinear effect in precession motion was also discussed.

Original languageEnglish
Article number202506
JournalApplied Physics Letters
Volume93
Issue number20
DOIs
Publication statusPublished - 2008 Dec 2
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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