Sublattice Melting in Binary Superionic Colloidal Crystals
Soft Condensed Matter
2020-03-18 v4 Superconductivity
Abstract
In superionic compounds one component pre-melts providing high ionic conductivity to solid state electrolytes. Here, we find sublattice melting in colloidal crystals of oppositely charged particles that are highly asymmetric in size and charge in salt solutions. The small particles in ionic compounds melt when the temperature increases forming a superionic phase. These delocalized small particles in a crystal of large oppositely charged particles, in contrast to superionic phases in atomic systems, form crystals with non-electroneutral stoichiometric ratios. This generates structures with multiple domains of ionic crystals in percolated superionic phases with adjustable stoichiometries.
Cite
@article{arxiv.1909.04191,
title = {Sublattice Melting in Binary Superionic Colloidal Crystals},
author = {Yange Lin and Monica Olvera de la Cruz},
journal= {arXiv preprint arXiv:1909.04191},
year = {2020}
}