Abstract
In a recent paper the author has given a theoretical calculation of the elastic constants of copper and of the alkali metals. The purpose of this note is: firstly, to correct some mistakes in the calculation for the alkali metals (that for copper is correct); secondly, to compare these results with a recent experimental determination of the elastic constants for sodium ; and thirdly, to attempt an explanation of the observed fact that the specific heats of the alkalis show abnormally large deviations from the Debye form. The corrections are as follows: the formulae in Table II, p. 630, for the body centred cubic structure should read A I - 16/3 ρ dw / d ρ 2B I = 8/9 ρ 2 d 2 w / d ρ 2 + 16/9 ρ dw / d ρ. In formulae (17a) and (18) a factor 2 should be inserted on the left-hand side, since w is defined as the potential energy per ion, whereas Born and Mayer’s values relate to the energy per pair of ions.
Keywords
Alkali metalThermodynamicsCopperIonChemistryTable (database)Debye modelPhysicsComputer science
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Publication Info
- Year
- 1936
- Type
- article
- Volume
- 157
- Issue
- 891
- Pages
- 444-450
- Citations
- 150
- Access
- Closed
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Cite This
K. Fuchs
(1936).
The elastic constants and specific heats of the alkali metals.
Proceedings of the Royal Society of London A Mathematical and Physical Sciences
, 157
(891)
, 444-450.
https://doi.org/10.1098/rspa.1936.0207
Identifiers
- DOI
- 10.1098/rspa.1936.0207