2024
DOI: 10.1088/2515-7639/ad8378
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Zero momentum topological insulator in 2D semi-Dirac materials

Marta García Olmos,
Yuriko Baba,
Mario Amado
et al.

Abstract: Semi-Dirac materials in 2D present an anisotropic dispersion relation, linear along one direction and quadratic along the perpendicular one. This study explores the topological properties and the influence of disorder in a 2D semi-Dirac Hamiltonian. Energy-dependent edge states appear only in one direction, localized on either the upper or lower edge of the nanoribbon determined by their particle or hole character. Their topological protection can be rigorously founded on the Zak phase of the one-dimensional r… Show more

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