Stanene: A Good Platform for Topological Insulator and Topological Superconductor

Abstract

Two dimensional (2D) topological insulators (TIs) and topological superconductors (TSCs) have been intensively studied for recent years due to its great potential for dissipationless electron transportation and fault-tolerant quantum computing, respectively. Here we focus on stanene, the tin analogue of graphene, to give a brief review of its development as a candidate for both 2D TI and TSC. Stanene is proposed to be a TI with a large gap of 0.3 eV, and its topological properties are sensitive to various factors, e.g., the lattice constants, chemical functionalization and layer thickness, which offer various methods for phase tunning. Experimentally, the inverted gap and edge states are observed recently, which are strong evidence for TI. In addition, stanene is also predicted to be a time reversal invariant TSC by breaking inversion symmetry, supporting helical Majorana edge modes. The layer-dependent superconductivity of stanene is recently confirmed by both transport and scanning tunneling microscopy measurements. This review gives a detailed introduction to stanene and its topological properties and some prospects are also discussed.

28 pages, 11 figures

References in corpus (14)

• Electric Field Effect in Atomically Thin Carbon Films
• Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
• Quantum Spin Hall Insulator State in HgTe Quantum Wells
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• Prediction of Near-Room-Temperature Quantum Anomalous Hall Effect on Honeycomb Materials
• Distinguishing a Majorana zero mode using spin resolved measurements
• Gapped Electronic Structure of Epitaxial Stanene on InSb(111)
• Strain-Induced Band Engineering in Monolayer Stanene on Sb(111)

Cited by in corpus (4)

• Accessing the spectral function of in operando devices by angle-resolved photoemission spectroscopy
• Light-induced switching between singlet and triplet superconducting states
• Transport features of topological corner states in honeycomb lattice with multihollow structure
• Strain-triggered high-temperature superconducting transition in two-dimensional carbon allotrope