Microscopic visco-elastic motions of narrow two-dimensional dust Coulomb liquids under modulated shear stress

Ming Hua Chang, I. Lin

研究成果: 雜誌貢獻期刊論文同行評審

1 引文 斯高帕斯(Scopus)

摘要

The microscopic visco-elastic motion of a quasi-2D dusty plasma liquid confined to a width of about 15 interparticle distances under square stress pulses shorter than thermal relaxation time from a chopped laser beam is investigated experimentally. The stress-enhanced excitations of hopping vortices are responsible for particles in the laser driven zone reaching, after a higher initial velocity, a constant nonzero terminal forward velocity and partial plastic deformation through the loss of the structure memory. The driven particles around domains with caged shear motion still partially keep the structural memory and demonstrate partial elastic backwards motion with exponential relaxation after turning off the laser.

原文???core.languages.en_GB???
頁(從 - 到)16.1-16.8
期刊New Journal of Physics
5
DOIs
出版狀態已出版 - 14 3月 2003

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