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On the behavior of single-particle dynamic properties of liquid Hg and other metals
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10.1063/1.3020717
/content/aip/journal/jcp/129/17/10.1063/1.3020717
http://aip.metastore.ingenta.com/content/aip/journal/jcp/129/17/10.1063/1.3020717

Figures

Image of FIG. 1.
FIG. 1.

for selected values. Full lines are the AIMD results. Dashed lines are the fits to an exponential function for long times (in the inset of the upper left panel, the short time behavior is enhanced to appreciate the initial slopes). Dotted lines: Gaussian approximation. The results from the cumulant expansion are indistinguishable from the AIMD ones. The insets in the right panels show 1000 times the difference between the AIMD data and the Gaussian approximation (dotted lines) or the cumulant expansion (dashed-dotted lines).

Image of FIG. 2.
FIG. 2.

Coefficients of the long time fit of to an exponential function for several values. The circles are the data. Dashed line: fit of the data to functions linear in . Full line: fit of the data to the expressions provided by the cumulant expansion.

Image of FIG. 3.
FIG. 3.

Functions , defined in the text, for several wavevectors. When increases the function becomes smaller. Liquid Hg: , 0.68, 0.84, 0.96, 1.08, and . Liquid Mg: , 0.29, 0.41, 0.53, 0.67, and . Liquid Si: , 0.33, 0.47, 0.60, 0.76, and . The insets show an expanded view of the short time behavior.

Tables

Generic image for table
Table I.

Coefficients of linear fits of for .

Generic image for table
Table II.

Coefficients of the fits of and to the expressions provided by the cumulant expansion.

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/content/aip/journal/jcp/129/17/10.1063/1.3020717
2008-11-07
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: On the behavior of single-particle dynamic properties of liquid Hg and other metals
http://aip.metastore.ingenta.com/content/aip/journal/jcp/129/17/10.1063/1.3020717
10.1063/1.3020717
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