Time resolved spectroscopy of InMnAs using differential transmission technique in mid-infrared

M. Bhowmick, T. R. Merritt, K. Nontapot, Bruce W Wessels, O. Drachenko, G. A. Khodaparast*

*Corresponding author for this work

Research output: Contribution to journalConference article

4 Scopus citations

Abstract

InMnAs grown by MOVPE is a room temperature ferromagnetic semiconductor with a Tc of 330 K. The origin of the ferromagnetism and the interactions between itinerant carriers and localized spins in these structures are open questions. To address these questions, the carrier and spin life time in these structures were probed in mid-infrared region. The approach in this work was focused on the time and polarization-resolved differential transmission measurements suggesting a T1 of ∼1 ps. We compare our results with reported spin relaxations in InAs and MBE grown InMnAs.

Original languageEnglish (US)
Pages (from-to)1167-1170
Number of pages4
JournalPhysics Procedia
Volume3
Issue number2
DOIs
StatePublished - Jan 31 2010
Event14th International Conference on Narrow Gap Semiconductors and Systems, NGS2-14 - Senda, Japan
Duration: Jul 13 2009Jul 17 2009

Keywords

  • Ferromagnetic semiconductors
  • Ferromagnetism
  • Narrow gap semiconductors
  • Time resolved spectroscopy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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