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Title: Periodically sheared 2D Yukawa systems

We present non-equilibrium molecular dynamics simulation studies on the dynamic (complex) shear viscosity of a 2D Yukawa system. We have identified a non-monotonic frequency dependence of the viscosity at high frequencies and shear rates, an energy absorption maximum (local resonance) at the Einstein frequency of the system at medium shear rates, an enhanced collective wave activity, when the excitation is near the plateau frequency of the longitudinal wave dispersion, and the emergence of significant configurational anisotropy at small frequencies and high shear rates.
Authors:
 [1] ;  [1] ;  [2] ;  [1] ;  [3]
  1. Institute for Solid State Physics and Optics, Wigner Research Centre for Physics, Hungarian Academy of Sciences, Konkoly-Thege Miklós str. 29-33, H-1121 Budapest (Hungary)
  2. (CASPER), One Bear Place 97310, Baylor University, Waco, Texas 76798 (United States)
  3. (United States)
Publication Date:
OSTI Identifier:
22486497
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 10; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ANISOTROPY; ENERGY ABSORPTION; EXCITATION; FREQUENCY DEPENDENCE; MOLECULAR DYNAMICS METHOD; PERIODICITY; SHEAR; SIMULATION; TWO-DIMENSIONAL CALCULATIONS; VISCOSITY; YUKAWA POTENTIAL