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First Observation of Electrorheological Plasmas

First Observation of Electrorheological Plasmas We report the experimental discovery of “electrorheological (ER) complex plasmas,” where the control of the interparticle interaction by an externally applied electric field is due to distortion of the Debye spheres that surround microparticles (dust) in a plasma. We show that interactions in ER plasmas under weak ac fields are mathematically equivalent to those in conventional ER fluids. Microgravity experiments, as well as molecular dynamics simulations, show a phase transition from an isotropic to an anisotropic (string) plasma state as the electric field is increased. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review Letters American Physical Society (APS)

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References (18)

Publisher
American Physical Society (APS)
Copyright
Copyright © 2008 The American Physical Society
ISSN
1079-7114
DOI
10.1103/PhysRevLett.100.095003
pmid
18352717
Publisher site
See Article on Publisher Site

Abstract

We report the experimental discovery of “electrorheological (ER) complex plasmas,” where the control of the interparticle interaction by an externally applied electric field is due to distortion of the Debye spheres that surround microparticles (dust) in a plasma. We show that interactions in ER plasmas under weak ac fields are mathematically equivalent to those in conventional ER fluids. Microgravity experiments, as well as molecular dynamics simulations, show a phase transition from an isotropic to an anisotropic (string) plasma state as the electric field is increased.

Journal

Physical Review LettersAmerican Physical Society (APS)

Published: Mar 7, 2008

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