Abstract
IN a recent lecture-survey given to the Physical Society1 it was shown that calculations based on the Faxen-Waller theory gave good agreement with experiment, not only within the regions to which that theory could properly be applied, but also in the short wave-length range where its validity was open to question. Thus diagrams showing the observed scattering power of KCl and Na in reciprocal space and the scattering power calculated by means of Jahn's formula were in general agreement not only in the neighbourhood of the reciprocal lattice points (region of long waves) but also at a distance from those points.
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References
Lonsdale, K., Proc. Phys. Soc., 54, 314 (1942).
Laval, J., Bull. Soc. Franc. Min., 62, 137 (1939).
Gregg, R. Q., and Gingrich, N. S., Phys. Rev., 59, 619 (1941).
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LONSDALE, K. Letter to Editors. Nature 152, 20 (1943). https://doi.org/10.1038/152020a0
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DOI: https://doi.org/10.1038/152020a0
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