Skip to main content
SpringerLink
Log in

Photorefractive properties of Cr-doped Sr0.61Ba0.39Nb2O6 related to crystal purity and doping concentration

  • Published:
Applied Physics B Aims and scope Submit manuscript

Abstract.

The purity and the concentrations of the constituents Sr, Ba, Nb and Cr were determined in single crystals of chromium-doped Sr0.61Ba0.39Nb2O6 (SBN) by instrumental neutron activation analysis (INAA) and X-ray fluorescence analysis (XRF). Experiments with different Cr concentrations CCr reveal constant Sr and Ba concentrations as well as a decreasing Nb concentration with an increasing CCr. Therefore, Cr is incorporated at Nb lattice sites. The distribution coefficient of Cr is 1.2 between 100 and about 7000 ppm Cr and 1 above. From measurements of the holographic two-beam coupling gain Γ for different CCr, we deduced response times for the buildup of holographic gratings. The saturation value of Γ depends in a nonlinear manner on CCr and reaches its maximum at about 6000 ppm Cr. The inverse photorefractive response time of the grating erasure depends linearly on the erasure intensity for all doping concentrations. Thus a one-center model can be assumed for the charge transport in SBN:Cr.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Author information

Authors and Affiliations

  1. Institute for Crystallography, University of Cologne, Zülpicherstr. 49b, 50674 Cologne, Germany, DE

    T. Woike, U. Dörfler & T. Granzow

  2. Department of Nuclear Technology and Nuclear Energy, University of Sofia, Boul. J. Bourchier 5, 1164 Sofia, Bulgaria, BG

    L. Tsankov

  3. Institute for Mineralogy and Geochemistry, University of Cologne, Zülpicherstr. 49b, 50674 Cologne, Germany, DE

    G. Weckwerth & D. Wolf

  4. Fachbereich Physik, Universität Osnabrück, Postfach 4469, 49069 Osnabrück, Germany, DE

    M. Wöhlecke, R. Pankrath & M. Imlau

  5. Institute of Applied Physics, University of Duisburg, Lotharstr. 65, 47048 Duisburg, Germany, DE

    W. Kleemann

Authors
  1. T. Woike
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. U. Dörfler
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. L. Tsankov
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. G. Weckwerth
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. D. Wolf
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. M. Wöhlecke
    View author publications

    You can also search for this author in PubMed Google Scholar

  7. T. Granzow
    View author publications

    You can also search for this author in PubMed Google Scholar

  8. R. Pankrath
    View author publications

    You can also search for this author in PubMed Google Scholar

  9. M. Imlau
    View author publications

    You can also search for this author in PubMed Google Scholar

  10. W. Kleemann
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Received: 8 December 2000 / Revised version: 23 January 2001 / Published online: 21 March 2001

Rights and permissions

Reprints and permissions

About this article

Cite this article

Woike, T., Dörfler, U., Tsankov, L. et al. Photorefractive properties of Cr-doped Sr0.61Ba0.39Nb2O6 related to crystal purity and doping concentration . Appl Phys B 72, 661–666 (2001). https://doi.org/10.1007/s003400100544

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s003400100544

Search

Navigation