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arXiv · 2104.12944

Atomically Thin Quantum Spin Hall Insulators

Michael S. Lodge·Shengyuan A. Yang·Shantanu Mukherjee·Bent Weber
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Abstract

Atomically thin topological materials are attracting growing attention for their potential to radically transform classical and quantum electronic device concepts. Amongst them is the quantum spin Hall (QSH) insulator - a two-dimensional state of matter that arises from an interplay of topological band inversion and strong spin-orbit coupling, with large tunable bulk band gaps up to 800meV and gapless, one-dimensional edge states. Reviewing recent advances in materials science and engineering alongside theoretical description, this article surveys the QSH materials library with focus on their prospects for QSH-based device applications. In particular, this review discusses theoretical predictions of non-trivial superconducting pairing in the QSH state towards Majorana based topological quantum computing - the next frontier in QSH materials research.

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Michael S. Lodge, Shengyuan A. Yang, Shantanu Mukherjee, Bent Weber. 2021-04-27. Atomically Thin Quantum Spin Hall Insulators. https://doi.org/10.1002/adma.202008029

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