Effect of Rashba spin-orbit coupling on topological phases in monolayer ZnIn2Te4
Abstract
The interplay of Rashba and quantum spin Hall effects in non-centrosymmetric systems presents both challenges and opportunities for spintronic applications. While Rashba spin-orbit coupling can disrupt the quantum spin Hall phase, their coexistence may enable additional spintronic functionalities by coupling spin-momentum locking in the bulk with topologically protected edge states. Using the ZnInTe monolayer as a case study-a predicted polar two-dimensional topological insulator-we investigate how intrinsic and Rashba spin-orbit coupling compete within a single material. Our results identify key conditions under which sizable Rashba spin splitting can coexist with a stable quantum spin Hall phase, offering guidance for engineering quantum spin Hall insulators with enhanced spintronic capabilities.
Keywords
Cite
@article{arxiv.2506.15184,
title = {Effect of Rashba spin-orbit coupling on topological phases in monolayer ZnIn2Te4},
author = {Jun-Jie Zhang and Shuai Dong},
journal= {arXiv preprint arXiv:2506.15184},
year = {2025}
}