TL;DR
This paper investigates the elastic properties of solid Yukawa systems, providing new results for fcc lattices and improved calculations for bcc lattices, including analytical expressions and approximations for different polarization regimes.
Contribution
It presents new calculations of elastic moduli for fcc Yukawa crystals and improved results for bcc lattices, along with analytical expressions for weak polarization.
Findings
Elastic moduli for fcc lattices are newly obtained.
Results for bcc lattices are consistent with and improve previous work.
Analytical expressions for elastic moduli under weak polarization are provided.
Abstract
We study elastic properties of solid Yukawa systems. Elastic moduli and effective shear modulus of body-centered cubic (bcc) and face-centered cubic (fcc) lattices are obtained from electrostatic energies of deformed crystals. For the bcc lattice our results are well consistent with previous calculations and improve them, while results for the fcc lattice are new. We have also obtained an analytical expression of the elastic moduli for the weak polarization and constructed a convenient approximation for the higher polarization.
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