Abstract
The elastic constants of nine transition metals and four rare-earths and actinides are calculated using the ion-ion interaction defined by us recently. The volume contribution to elastic moduli is calculated by exploiting the density dependence of the screening function. The calculated volume contribution to bulk modulus is found to vary between 17.1% and 62.4% for a number of metals, which is quite significant and play an important role for describing quantitatively the violation of the Cauchy ratio for these metals.
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Singh, N., Yadav, B.S. The elastic moduli, the volume contribution and the Cauchy ratio ford andf shell metals. Pramana - J. Phys. 42, 387–394 (1994). https://doi.org/10.1007/BF02847555
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DOI: https://doi.org/10.1007/BF02847555