Comparison of structural theories for graphite intercalation compounds

Zhuo Min Chen, Bernard Pettitt, George Reiter, Simon C. Moss, Omar A. Karim

Research output: Contribution to journalArticle

Abstract

Alkali liquids intercalated in graphite are subject to a strong periodic host potential. We compare here two theories for the modulation induced in the alkali density that result in different approximations for higher-order correlations, with computer simulations and experimental data. We show these two theoriesone based on a cumulant expansion, the other on an angular truncation of the Lovet-Mou-Buff equationagree analytically in the limit of weak host potential and are numerically similar at high temperatures for a realistic potential.

Original languageEnglish (US)
Pages (from-to)10476-10478
Number of pages3
JournalPhysical Review B
Volume46
Issue number16
DOIs
StatePublished - 1992
Externally publishedYes

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ASJC Scopus subject areas

  • Condensed Matter Physics

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