The properties of coupled drift and dust ion acoustic wave (DIAW) driven nonlinear structures like solitary waves and double layers (DLs) are investigated in a magnetized inhomogeneous plasma carrying temperature and density inhomogeneities along with stationary dust. The electrons are assumed to follow double spectral index $(r,q)$-distribution in which r shows the flat top nature while q is responsible for the shape of the distribution. A nonlinear differential equation is derived and its solution in the form of solitons and DLs is obtained by employing relevant boundary conditions. It is noted that coupled linear dust ion acoustic-drift wave and corresponding nonlinear structures are modified significantly under the variations in r and q. Only rarefactive solitons are obtained under the impact of various quantities especially r, q and normalized drift speed $v_n^{\ast }$. However, both compressive and rarefactive double layers (DLs) are sustained/formed in such a plasma. It is noted in such an inhomogeneous, magnetized with non-Maxwellian character plasma that the amplitude of nonlinear structures is strongly dependent on the choice of parameters like r, q and $v_n^{\ast }$. The study is important relevant to space plasmas.

耦合漂移和尘埃离子声波 (DIAW) 驱动的非线性结构如孤立波和双层 (DL) 的特性在携带温度和密度不均匀性以及静止尘埃的磁化不均匀等离子体中进行了研究。假设电子遵循双光谱指数$(r,q)$-分布，其中r显示平顶性质，而q负责分布的形状。推导了一个非线性微分方程，并通过使用相关的边界条件获得了孤子和DLs形式的解。值得注意的是，耦合的线性尘埃离子声学漂移波和相应的非线性结构在r和q的变化下发生了显着变化。在各种量特别是r , q和归一化漂移速度的影响下，仅获得稀疏孤子$v_n^{＊}$. 然而，压缩和稀疏双层 (DL) 都在这种等离子体中维持/形成。值得注意的是，在这种不均匀的、具有非麦克斯韦特征的磁化等离子体中，非线性结构的振幅在很大程度上取决于参数的选择，如r、q和$v_n^{＊}$. 这项研究与空间等离子体很重要。