A 30° twist in a bismuthene bilayer on SiC induces Rashba spin-splitting and an enhanced Quantum Spin Hall phase confirmed by Z2 invariant and spin Hall conductivity, tunable by Sb substitution.
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Twist-engineering of a robust Quantum Spin Hall phase in $\beta$-/flat bismuthene bilayer from first principles
A 30° twist in a bismuthene bilayer on SiC induces Rashba spin-splitting and an enhanced Quantum Spin Hall phase confirmed by Z2 invariant and spin Hall conductivity, tunable by Sb substitution.