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The lateral electron-hole transport in intrinsic In0.53Ga0.47As/InP quantum well, grown on tilted InP substrate, was investigated by scanning the photoluminescence intensity profile on the sample's su...
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Room temperature electron spin coherence in telecom-wavelength quaternary quantum wells

Appl. Phys. Lett. 89, 142104 (2006); doi:10.1063/1.2358931

Published 3 October 2006

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W. H. Lau, V. Sih, N. P. Stern, R. C. Myers, D. A. Buell, A. C. Gossard, and D. D. Awschalom
Center for Spintronics and Quantum Computation, University of California, Santa Barbara, California 93106
Time-resolved Kerr rotation spectroscopy is used to monitor the room temperature electron spin dynamics of optical telecommunication wavelength AlInGaAs multiple quantum wells lattice matched to InP. The authors found that electron spin coherence times and effective g factors vary as a function of aluminum concentration. The measured electron spin coherence times of these multiple quantum wells, with wavelengths ranging from 1.26  to  1.53  µm, reach approximately 100  ps at room temperature, and the measured electron effective g factors are in the range from −2.3  to  −1.1. ©2006 American Institute of Physics
History: Received 25 July 2006; accepted 16 August 2006; published 3 October 2006
Permalink: http://link.aip.org/link/?APPLAB/89/142104/1
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KEYWORDS and PACS

Keywords
PACS
  • 78.47.+p
    Time-resolved optical spectroscopies and other ultrafast optical measurements in condensed matter
  • 78.67.De
    Optical properties of quantum wells
  • 78.66.Fd
    Optical properties of III–V semiconductors (thin films)
  • 72.25.Dc
    Spin polarized transport in semiconductors
  • 78.20.Ls
    Magnetooptical effects (bulk materials/thin films)
  • 78.20.Ek
    Optical activity (bulk materials/thin films)
  • YEAR: 2006

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PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
Publisher:
AIP is a member of CrossRef AIP

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