Edge-state influence on high-order harmonic generation in topological nanoribbons

• URL: http://arxiv.org/abs/2103.14671v1
• Date: Fri, 26 Mar 2021 18:20:02 GMT
• Title: Edge-state influence on high-order harmonic generation in topological nanoribbons
• Authors: Christoph J\"ur{\ss} and Dieter Bauer
• Abstract summary: The high-order harmonic generation in finite topological nanoribbons is investigated using a tight-binding description. The energies of those edge states as functions of the tight-binding parameters display crossings and avoided crossings, which influence the high-harmonic spectra.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The high-order harmonic generation in finite topological nanoribbons is investigated using a tight-binding description. The ribbons consist of hexagons and are almost one-dimensional. Two edge states emerge at the short edges of the ribbon after a gap closure between valence and conduction band, indicating a topological phase transition. The energies of those edge states as functions of the tight-binding parameters display crossings and avoided crossings, which influence the high-harmonic spectra.

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