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VOLUME 102 (2015) | ISSUE 5 | PAGE 322
Phase transition for edge band emergence induced by edge relaxation of phosphorene ribbons
DOI: 10.7868/S0370274X15170075
Abstract
We investigate the edge bands of the relaxed phosphorene edges. The edge relaxation is modeled by letting the outmost bonds be different. By treating the relaxed hopping energy as a parameter, we observe the phase transition for the edge band appearance in the bulk gap. The analytical expression of the relaxed hopping for the phase transition is obtained by means of tight-binding parameters.