Three-Dimensional Modulation Instability of Dust-Ion-Acoustic Waves and Rogue Waves in Warm Nonthermal Magnetized Plasmas

A theoretical investigation has been made to study the modulation stability/instability of three-dimensional dust-ion-acoustic wave packets in a warm magnetized complex plasma system in the presence of nonthermal distributed electrons and positrons species. The set of equations describing our plasma system has been reduced to a (3 + 1)-dimensional nonlinear Schrödinger equation by using the reductive perturbation method that is valid for finite but small amplitude limits. It is observed that both nonlinear and dispersive coefficients of (3 + 1)-dimensional nonlinear Schrödinger equation are significantly modified by the external magnetic field and transverse velocity perturbation. The regions of stable and unstable solutions for the modulated dust-ion-acoustic waves have been examined numerically. Moreover, the dependence of modulation instability and rogue waves on the relevant plasma parameters is discussed. The implications of our theoretical results in space and laboratories magnetized dusty plasma medium are briefly discussed.