Comparison of structural theories for graphite intercalation compounds

Zhuo Min Chen; B. Montgomery Pettitt; George Reiter; Simon C. Moss; Omar A. Karim

doi:10.1103/PhysRevB.46.10476

Comparison of structural theories for graphite intercalation compounds

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

Research output: Contribution to journal › Article › peer-review

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 language	English (US)
Pages (from-to)	10476-10478
Number of pages	3
Journal	Physical Review B
Volume	46
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevB.46.10476
State	Published - 1992
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics

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10.1103/PhysRevB.46.10476

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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.",

author = "Chen, {Zhuo Min} and Pettitt, {B. Montgomery} and George Reiter and Moss, {Simon C.} and Karim, {Omar A.}",

year = "1992",

doi = "10.1103/PhysRevB.46.10476",

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AU - Chen, Zhuo Min

AU - Pettitt, B. Montgomery

AU - Reiter, George

AU - Moss, Simon C.

AU - Karim, Omar A.

PY - 1992

Y1 - 1992

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AB - 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.

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Comparison of structural theories for graphite intercalation compounds

Abstract

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