This article is cited in 6 papers

CONDENSED MATTER

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

M. Yang, H.-J. Duan, R.-Q. Wang

Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, 510006 Guangzhou, China

Abstract: Phosphorene (a mono-layer of black phosphorus) recently spurred much attention due to its potential for application. We notice there are two types of zigzag edge and also 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 nontypical armchair edge decays to the bulk at two different decay rates.

Received: 16.09.2015

Language: English

DOI: 10.7868/S0370274X15210080

 English version: Journal of Experimental and Theoretical Physics Letters, 2015, 102:9, 610–615

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