FRACTIONAL STOKES-EINSTEIN LAW FOR IONIC TRANSPORT IN LIQUIDS

Our extended electrical conductivity and viscosity measurements have r evealed a general fractional power relation between them in pure and m ixed ionic melts: sigma T proportional to (T/eta)(m) (m = 0.8 +/- 0.1 for all melts) where eta is a shear viscosity of a melt. This relation has been observed in 9 orders of magnitude range of viscosity for the well known ionic melt Ca2K3(NO3)(7) This fractional interdependence i s considered to be a macroscopic manifestation of a basic difference i n elementary mechanisms of charge and momentum transport in ionic melt s.