The study of dusty plasma's conductivity with dual-temperature model

The concept of two interactive factors is proposed to describe and deduce the dusty plasma's complex conductivity on considering the ions’ contribution. In the specific analysis and calculation, the actual fact that the temperature of electrons and ions in plasma may not be equal is taken into account. The theoretical deduction indicates that the ion-dust and electronic-dust interactive factors have a close relate to the corresponding particle number density, mass, and temperature, as well as the radius and number density of the particles. In further, it is found that the two interactive factors are both composed by the charging response factor and the electric potential impact factor. The most critical result is the condition which can be used to judge whether the contribution of ions to the conductivity can be ignored is proposed.