  The combination of magnetism and topology in magnetic topological insulators
(MTIs) has led to unprecedented advancements of time reversal symmetry-breaking
topological quantum physics in the past decade. Compared with the uniform
films, the MTI heterostructures provide a better framework to manipulate the
spin-orbit coupling and spin properties. In this review, we summarize the
fundamental mechanisms related to the physical orders host in
(Bi,Sb)2(Te,Se)3-based hybrid systems. Besides, we provide an assessment on the
general strategies to enhance the magnetic coupling and spin-orbit torque
strength through different structural engineering approaches and effective
interfacial interactions. Finally, we offer an outlook of MTI
heterostructures-based spintronics applications, particularly in view of their
feasibility to achieve room-temperature operation.
