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Decay and the double-decay properties of edge bands of phosphorene ribbons

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Abstract

Phosphorene (a monolayer of black phosphorus) recently spurred much attention due to its potential for application. We notice there are two types of zigzag edge and two types of armchair edge for phosphorene lattice. We study the winding number of various types of edge of phosphorene ribbons and conclude that, besides on the typical zigzag edge, the flat zero-energy edge band can be found in the ribbon of another nontypical armchair edge. The localization of these edge bands is investigated analytically. We find every single edge state of the atypical armchair edge decays to the bulk at two different decay rates.

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Authors and Affiliations

  1. Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, 510006, Guangzhou, People’s Republic of China

    M. Yang, H.-J. Duan & R.-Q. Wang

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  1. M. Yang
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  2. H.-J. Duan
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  3. R.-Q. Wang
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Correspondence to M. Yang.

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Yang, M., Duan, HJ. & Wang, RQ. Decay and the double-decay properties of edge bands of phosphorene ribbons. Jetp Lett. 102, 610–615 (2015). https://doi.org/10.1134/S0021364015210134

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  • DOI: https://doi.org/10.1134/S0021364015210134

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