We investigate ways of controlling the magnetic dynamic, spin currents and other materials properties in topological insulators interfaces with non-collinear magnetic structure, and also in dilute magnetic semiconductors. A fundamental analysis of the electronic structure including spin-orbit coupling is relevant for engineering interesting spin related phenomena at the interfaces. The effect of strain on magnetic anisotropy in dilute magnetic semiconductors was classified. Moreover, the magnetic dynamic of adatoms deposited on the substrate was used to moderate the electronic structure of the sublayer. An appropriate time-dependent driving mechanism was identified that allows for an improved communication protocol of the quantum state transfer. The many-body localization phase for a spin-frustrated chain was confirmed, and a new method for estimating the critical disorder for its appearance has been inferred.