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Conferences > IQEC > 2004 > IFA > IFA1
  • Conference on Lasers and Electro-Optics/International Quantum Electronics Conference and Photonic Applications Systems Technologies
  • Technical Digest (CD) (Optica Publishing Group, 2004),
  • paper IFA1
  • •https://doi.org/10.1364/IQEC.2004.IFA1

Ultrafast Optical Manipulation of Ferromagnetic Order in Mn-doped III-V Semiconductors

J. Wang, J. Kono, A. Oiwa, and H. Munekata

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Abstract

We have used two-color time-resolved magneto-optical Kerr Effect spectroscopy to study the dynamics of spin/magnetic order in InMnAs. We observed ultrafast photo-induced softening due to spin-polarized transient carriers. This transient softening persists only during the carrier lifetime (∼ 2 ps). Our data clearly demonstrates that magnetic properties can be strongly modified in an ultrafast manner.

© 2004 Optical Society of America

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