Unavoidable disorder and entropy in multi-component systems
Materials Science
2019-06-05 v1
Abstract
The need for improved functionalities is driving the search for more complicated multi-component materials. Despite the factorially increasing composition space, ordered compounds with 4 or more species are rare. Here, we unveil the competition between the gain in enthalpy and entropy with increasing number of species by statistical analysis of the AFLOW data repositories. A threshold in the number of species is found where entropy gain exceeds enthalpy gain. Beyond that, enthalpy can be neglected, and disorder - complete or partial - is unavoidable.
Cite
@article{arxiv.1906.01085,
title = {Unavoidable disorder and entropy in multi-component systems},
author = {Cormac Toher and Corey Oses and David Hicks and Stefano Curtarolo},
journal= {arXiv preprint arXiv:1906.01085},
year = {2019}
}
Comments
2 pages, 1 figure