Topological Crystalline Insulator Nanostructures

Abstract

Topological crystalline insulators are topological insulators whose surface states are protected by the crystalline symmetry, instead of the time reversal symmetry. Similar to the first generation of three-dimensional topological insulators such as Bi2Se3 and Bi2Te3, topological crystalline insulators also possess surface states with exotic electronic properties such as spin-momentum locking and Dirac dispersion. Experimentally verified topological crystalline insulators to date are SnTe, Pb1-xSnxSe, and Pb1-xSnxTe. Because topological protection comes from the crystal symmetry, magnetic impurities or in-plane magnetic fields are not expected to open a gap in the surface states in topological crystalline insulators. Additionally, because they are cubic structure instead of layered structure, branched structures or strong coupling with other materials for large proximity effects are possible, which are difficult with layered Bi2Se3 and Bi2Te3. Thus, additional fundamental phenomena inaccessible in three-dimensional topological insulators can be pursued. In this review, topological crystalline insulator SnTe nanostructures will be discussed. For comparison, experimental results based on SnTe thin films will be covered. Surface state properties of topological crystalline insulators will be discussed briefly.

Accepted Manuscript Nanoscale, 2014

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• Pressure-induced Topological Phase Transitions in Rock-salt Chalcogenides
• Optimizing the superconducting transition temperature and upper critical field of Sn(1-x)In(x)Te
• Superconducting properties of the In substituted Topological Crystalline Insulator, SnTe
• Non-trivial spin-texture of the coaxial Dirac cones on the surface of topological crystalline insulator SnTe
• Experimental realization of SQUIDs with topological insulator junctions
• Interplay between topological insulators and superconductors
• Synthesis and characterisation of nanomaterials of the topological crystalline insulator SnTe
• Superconductivity induced by In substitution into the topological crystalline insulator Pb(0.5)Sn(0.5)Te

Cited by in corpus (9)

• Revealing surface states in In-doped SnTe superconducting nanoplates with low bulk mobility
• Electrically Tunable Quantum Spin Hall State in Topological Crystalline Insulator Thin films
• Surface Magnetism in Topological Crystalline Insulators
• Anyonic Topological Order in Twisted Equivariant Differential (TED) K-Theory
• Spin-orbit insulating phase in SnTe cubic nanowires: consequences on the topological surface states
• Template Mediated Formation of Colloidal Two-Dimensional Tin Telluride Nanosheets and the Role of the Ligands
• Structural Phase Transition and Carrier Density Tuning in SnSexTe1-x Nanoplates for Topological Crystalline Insulators
• Spin Stiffness and Domain Walls in Dirac-Electron Mediated Magnets
• Pentagonal nanowires from topological crystalline insulators: a platform for intrinsic core-shell nanowires and higher-order topology