Boron Triangular Kagome Lattice with Half-Metallic Ferromagnetism

Abstract

Based on the first-principles evolutionary materials design, we report a stable boron Kagome lattice composed of triangles in triangles on a two-dimensional sheet. The Kagome lattice can be synthesized on a silver substrate, with selecting Mg atoms as guest atoms. While the isolated Kagome lattice is slightly twisted without strain, it turns into an ideal triangular Kagome lattice under tensile strain. In the triangular Kagome lattice, we find the exotic electronic properties, such as topologically non-trivial flat band near the Fermi energy and half-metallic ferromagnetism, and predict the quantum anomalous Hall effect in the presence of spin-orbit coupling.

References in corpus (8)

• 2D materials and van der Waals heterostructures
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• Experimental Realization of Two-Dimensional Boron Sheets
• High temperature fractional quantum Hall states
• Novel Precursors for Boron Nanotubes: The Competition of Two-Center and Three-Center Bonding in Boron Sheets
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• Prospect of quantum anomalous Hall and quantum spin Hall effect in doped kagome lattice Mott insulators
• Universal condition for critical percolation thresholds of kagome-like lattices

Cited by in corpus (4)

• Coexistence of spin-1 fermion and Dirac fermion on the triangular kagome lattice
• Compact Localized States in Engineered Flat-Band $\mathcal{P}\mathcal{T}$ Metamaterials
• Fragile topological phase on the triangular kagome lattice and its bulk-boundary correspondence
• RKKY plateau in zero- and one-dimensional triangular Kagome lattice models