Abstract
THE early X-ray experiments of James, Firth and Waller1 on the modification of the diffracting power of crystals of sodium chloride due to thermal vibrations of the atoms dealt only with the reduction in intensity of the Bragg reflexions at different temperatures, and could therefore only give average root mean square amplitudes, but the more recent diffuse spot methods promise to give information concerning the whole frequency spectrum. By observation of the position, shape and intensity of the diffuse spots when the crystal is turned into a succession of reflecting positions, the effect of vibrations travelling in different directions, polarized in definite ways and with frequencies within known limits, can be traced2,3,4.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
James, R. W., Phil. Mag., 49, 585 (1925); Manchester Memoirs, 71, No. 2 (1926–27); James, R. W., and Firth, E. M., Proc. Roy. Soc., A, 117, 64 (1928); Waller, I., and James, R. W., Proc. Roy. Soc., A, 117, 214 (1928).
Zachariasen, W. H., Phys. Rev., 59, 860 (1941).
Jahn, H. A., Proc. Roy. Soc., A, 179, 320 (1942).
Lonsdale, K., and Smith, H., NATURE, 148, 628 (1941): 149, 21 (1942). Lonsdale, K., Proc. Phys. Soc. (in the press).
Raman, Sir C. V., Proc. Ind. Acad. Sci., A, 14, 317, 332 (1941).
Venkateswaran, C. S., Proc. Ind. Acad. Sci., A, 14, 387, 395, 426 (1941).
Robinson, B. W., Proc. Roy. Soc., A, 142, 431 (1933).
Laval, J., Bull. Soc. Franç. Min., 62, 137 (1939).
Jauncey, G. E. M., Baltzer, O. J., and Miller, D. C., Phys. Rev., 59, 908 (1941). Zachariasen, W. H., Phys. Rev., 59, 909 (1941). Baltzer, O. J., Phys. Rev., 60, 460 (1941).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
LONSDALE, K. Crystal Dynamics of Rocksalt. Nature 149, 698–699 (1942). https://doi.org/10.1038/149698b0
Issue Date:
DOI: https://doi.org/10.1038/149698b0
Comments
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.
