Electrostatic energy of solid binary ionic mixtures

Abstract

We study the electrostatic energy of binary ionic mixtures (BIMs) in the form of Coulomb crystals with the main focus on ordered crystals. We consider 15 different binary bcc-like lattices, accurately calculate their electrostatic energies and approximate them by a unified equation. These results extend those available in the literature. A detailed comparison with selected previous results is made, particularly, using previous calculations in the linear mixing rule approximation. The case of disordered BIMs is also outlined. The results are expected to be useful for exploring multi-component Coulomb systems in compact stars, laboratory plasmas, and technological applications.

References in corpus (11)

• Current challenges in the physics of white dwarf stars
• Classical and quantum Coulomb crystals
• ${}^{22}$Ne Phase Separation As A Solution To The Ultramassive White Dwarf Cooling Anomaly
• Electron-ion scattering in dense multi-component plasmas: application to the outer crust of an accreting neutron star
• Crystallization of the outer crust of a non-accreting neutron star
• Binary and ternary ionic compounds in the outer crust of a cold nonaccreting neutron star
• The structure of accreted neutron star crust
• Structure of Multicomponent Coulomb Crystals
• Quantum ion thermodynamics in liquid interiors of white dwarfs
• Electrostatic energy of Coulomb crystals with polarized electron background
• Phase diagrams of binary ionic mixtures and white dwarf cooling