Abstract
IN the issue of NATURE of February 22, Dr. G. W. Brindley reports on discrepancies in the X-ray scattering factors of zinc and cadmium. The observed values do not lie on a smooth curve. Of the two possible interpretations of this phenomenon, namely (a) the asymmetry of the atom or (b) the asymmetry in the lattice vibrations, Dr. Brindley gives preference to the latter, since the deviations are too large to be explained by (a)1.
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References
See also the paper by C. Zener, Phys. Rev., 49, 122 (1936).
See, M. C. Neuburger, ” Gitterkonstanten 1936”, Z. Krist., 93, 1 (1936).
This view has been mentioned by various writers: Hull, Ewald, Hume-Rothery. See also Canfleld, Phys. Rev., 35, 530 (1930).
For zinc at room-temperature with 1·8562, one gets ϵ = 0·4752 and at 415° with 1·8842 ϵ = 0·4989.
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HERRMANN, K. Asymmetry in Metallic Zinc and Cadmium. Nature 138, 290 (1936). https://doi.org/10.1038/138290b0
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DOI: https://doi.org/10.1038/138290b0
