Density and temperature effects on a surface electron-acoustic wave in a semi-bounded dusty plasma of two-temperature electrons

Abstract

The effects of density and temperature on a surface electron-acoustie plasma wave are investigated in a semi-bounded dusty plasma of two-ternperature electrons. The dispersion relation of tile Surface electron-acoustic plasma wave is obtained by the plasma dielectric function with the specular reflection boundary condition. The phase velocity is found to be decreased when increasing the ratio of the temperature of hot electrons to that of cold electrons for large wave numbers. It is also found that the phase velocity increases with an increase in the ratio of the density of hot electrons to that of cold electrons and that the phase velocity of tile Surface electron-acoustic wave increases with an increase in the density of the dust grains.