Visco-elastic effects in strongly coupled dusty plasmas
  We report on experimental evidence of visco-elastic effects in a strongly coupled dusty plasma through investigations of the propagation characteristics of low frequency dust acoustic waves and by excitations of transverse shear waves in a DC discharge Argon plasma. 
P. Bandyopadhyay, G. Prasad, A. Sen and P. K. Kaw
physics.plasm-ph