Microstructure of a liquid two-dimensional dusty plasma under shear |
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Authors: | Nosenko V Ivlev A V Morfill G E |
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Institution: | Max-Planck-Institut für extraterrestrische Physik, D-85741 Garching, Germany. nosenko@mpe.mpg.de |
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Abstract: | The microstructure of a strongly coupled liquid undergoing a shear flow was studied experimentally. The liquid was a shear melted two-dimensional plasma crystal, i.e., a single-layer suspension of micrometer-size particles in a rf discharge plasma. Trajectories of particles were measured using video microscopy. The resulting microstructure was anisotropic, with compressional and extensional axes at around ±45° to the flow direction. Corresponding ellipticity of the pair correlation function g(r) or static structure factor S(k) gives the (normalized) shear rate of the flow. |
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