Using molecular dynamics simulation we have investigated the melting properties of a 2-dimensional system of ions interacting through a screened Coulomb potential in the presence of a substrate. We focus on the role of the substrate potential in the melting transition. The physical system we study is the stage-2 graphite intercalation compound RbC24 and a related system RbC24.57 whose intercalant density differs from the former by a small amount. Our results reveal the nature of melting processes characteristic of periodic domain wall solids.
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This work was supported by the NSF grant #89-03579.
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Seong, H., Mahanti, S., Sen, S. et al. Ionic Overlayers on Corrugated Surfaces II: Melting. MRS Online Proceedings Library 291, 297–301 (1992). https://doi.org/10.1557/PROC-291-297