Coulomb lattice in a weakly ionized colloidal plasma

J. H. Chu, Lin I

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The bcc and hcp lattice structures have been observed in a colloidal plasma system using an optical microscope. The colloidal plasma consists of a weakly ionized Ar plasma and micron size SiO2 particles generated through chemical reaction between SiH4 and O2 gases. These particles are negatively charged and suspended in the plasma, and form a strongly coupled Coulomb system. The formation and melting of the Coulomb lattice by properly adjusting the system parameters are reported and discussed.

Original languageEnglish
Pages (from-to)183-190
Number of pages8
JournalPhysica A: Statistical Mechanics and its Applications
Issue number1-3
StatePublished - 1 Apr 1994


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