Skip to main content

Thank you for visiting You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Letter
  • Published:

High Indices of Refraction of Barium Titanate and other Heteropolar Titanium Compounds


IT is well known that all compounds containing titanium ions surrounded by six oxygen ions show high indices of refraction, and with the aid of the Lorentz – Lorenz formula high values of the electronic polarizabilities are calculated. Unfortunately, this formula is not rigorously valid for any of these titanium compounds because of the low symmetry of the crystal structures.

This is a preview of subscription content, access via your institution

Access options

Similar content being viewed by others


  1. van Santen, J. H., and Opechowski, W., Physica, 's-Grav., 14, 545 (1948).

    ADS  CAS  Google Scholar 

  2. Busch, G., Flury, H., and Merz, W., Helv. Phys. Acta, 21, 212 (1948).

    CAS  Google Scholar 

  3. Van Vleck, J. H., "The Theory of Electric and Magnetic Susceptibilities". 225 (Oxford Univ. Press, 1932).

    MATH  Google Scholar 

  4. van Santen, J. H., and Jonker, G. H., Philips Res. Rep., 3, 371 (1948).

    CAS  Google Scholar 

  5. Born, M., Z. Physik, 7, 124 (1921).

    Article  ADS  CAS  Google Scholar 

  6. Fajans, K., and Joos, G., Z. Physik., 23, 1 (1924).

    Article  ADS  CAS  Google Scholar 

  7. Ehrlich, P., Z. Elektrochem., 45, 362 (1939).

    CAS  Google Scholar 

  8. Shockley, W., Phys. Rev., 73, 1273 (1948).

    CAS  Google Scholar 

Download references

Author information

Authors and Affiliations


Rights and permissions

Reprints and permissions

About this article

Cite this article

VAN SANTEN, J., DE BOER, F. High Indices of Refraction of Barium Titanate and other Heteropolar Titanium Compounds. Nature 163, 957–958 (1949).

Download citation

  • Issue Date:

  • DOI:


By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.


Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing