Journal
ADVANCED MATERIALS
Volume 33, Issue 22, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.202008029
Keywords
2D topological insulators; helical Tomonaga– Luttinger liquids; Majorana fermions; quantum spin‐ Hall effect; topological superconductivity
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Funding
- National Research Foundation (NRF) Singapore, under its Competitive Research Programme Towards On-Chip Topological Quantum Devices [NRF-CRP21-2018-0001]
- Singapore National Research Foundation (NRF) Fellowship [NRF-NRFF2017-11]
- Singapore Ministry of Education (MOE) Academic Research Fund Tier 3 grant [MOE2018-T3-1-002]
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Atomically thin topological materials, such as the quantum spin Hall insulator, show great potential for applications in quantum computing and electronic devices, with large tunable bulk bandgaps and gapless edge states.
Atomically thin topological materials are attracting growing attention for their potential to radically transform classical and quantum electronic device concepts. Among them is the quantum spin Hall (QSH) insulator-a 2D state of matter that arises from interplay of topological band inversion and strong spin-orbit coupling, with large tunable bulk bandgaps up to 800 meV and gapless, 1D edge states. Reviewing recent advances in materials science and engineering alongside theoretical description, the QSH materials library is surveyed with focus on the prospects for QSH-based device applications. In particular, theoretical predictions of nontrivial superconducting pairing in the QSH state toward Majorana-based topological quantum computing are discussed, which are the next frontier in QSH materials research.
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