First-principles and Wannier calculations show that stacking trivial Bi2Te3-family quintuple layers induces tunable quantum spin Hall phases controllable by interlayer strain and electric field.
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Controllable Quantum Spin Hall Phases in Bi$_2$Te$_3$-Family van der Waals Heterobilayers
First-principles and Wannier calculations show that stacking trivial Bi2Te3-family quintuple layers induces tunable quantum spin Hall phases controllable by interlayer strain and electric field.