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Dual topological insulators, simultaneously protected by time‐reversal symmetry and crystalline symmetry, open great opportunities to explore different symmetry‐protected metallic surface states. However, the conventional dual topological states located on different facets hinder integration into planar opto‐electronic/spintronic devices. Here, dual topological superlattices (TSLs) Bi2Se3‐(Bi2/Bi2...
Emergent topological insulators (TIs) and their design are in high demand for manipulating and transmitting spin information toward ultralow‐power‐consumption spintronic applications. Here, distinct topological states with tailored spin properties can be achieved in a single reduced‐dimensional TI‐superlattice, (Bi2/Bi2Se3)‐(Bi2/Bi2Se3)N or (□/Bi2Se3)‐(Bi2/Bi2Se3)N (N is the repeating unit, □ represents...
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