Autor:	Kozlov, V. A., Nazarov, S. A., Orlof, A.
Rok vydání:	2019
Předmět:	Mathematical Physics
Druh dokumentu:	Working Paper
Popis:	We study scattering on an ultra-low potential in armchair graphene nanoribbon. Using the continuous Dirac model and including a couple of artificial waves in the scattering process, described by an augumented scattering matrix, we derive a condition for the existence of a trapped mode. We consider the threshold energies, where the the multiplicity of the continuous spectrum changes and show that a trapped mode may appear for energies slightly less than a threshold and its multiplicity does not exceed one. For energies which are higher than a threshold, there are no trapped modes, provided that the potential is sufficiently small. Comment: arXiv admin note: text overlap with arXiv:1701.05795
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1901.04477 Zobrazit plný text záznamu View this record from Arxiv