Electronic Structures of SiC Nanoribbons

Abstract

Electronic structures of SiC nanoribbons have been studied by spin-polarized density functional calculations. The armchair nanoribbons are nonmagnetic semiconductor, while the zigzag nanoribbons are magnetic metal. The spin polarization in zigzag SiC nanoribbons is originated from the unpaired electrons localized on the ribbon edges. Interestingly, the zigzag nanoribbons narrower than $\sim$4 nm present half-metallic behavior. Without the aid of external field or chemical modification, the metal-free half-metallicity predicted for narrow SiC zigzag nanoribbons opens a facile way for nanomaterial spintronics applications.

10 pages, 5 figures

References in corpus (9)

• Experimental Observation of Quantum Hall Effect and Berry's Phase in Graphene
• Energy Gaps in Graphene Nanoribbons
• Half-Metallic Graphene Nanoribbons
• Electronic structure and magnetic properties of graphitic ribbons
• Enhanced Half-Metallicity in Edge-Oxidized Zigzag Graphene Nanoribbons
• Role of Symmetry in the Transport Properties of Graphene Nanoribbons under Bias
• Energy Gaps and Stark Effect in Boron Nitride Nanoribbons
• Will Zigzag Graphene Nanoribbon Turn to Half Metal under Electric Field?
• Half Metallicity in Hybrid BCN Nanoribbons

Cited by in corpus (12)

• Monolayer honeycomb structures of group IV elements and III-V binary compounds
• A First-Principles Study of Defects and Adatoms in Silicon Carbide Honeycomb Structures
• Hydrogenated Bilayer Wurtzite SiC Nanofilms: A Two-Dimensional Bipolar Magnetic Semiconductor Material
• First principles many-body calculations of electronic structure and optical properties of SiC nanoribbons
• Role of vacancies in the magnetic and electronic properties of SiC nanoribbons: an ab initio study
• Topologically protected interface phonons in two-dimensional nanomaterials: hexagonal boron nitride and silicon carbide
• Nonmonotonic strain dependence of lattice thermal conductivity in monolayer SiC: a first-principles study
• From Half-metal to Semiconductor: Electron-correlation Effects in Zigzag SiC Nanoribbons From First Principles
• Boron and nitrogen impurities in SiC nanoribbons: an ab initio investigation
• Defect-driven tunable electronic and optical properties of two-dimensional silicon carbide
• Graphene zigzag ribbons, square lattice models and quantum spin chains
• Theoretical Study of Carbon Clusters in Silicon Carbide Nanowires