Open AccessО декорировании зигзагообразной кромки эпитаксиального графена
Author(s) -
С.Ю. Давыдов
Publication year - 2019
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2019.01.46912.171
Subject(s) - zigzag , graphene , enhanced data rates for gsm evolution , dipole , cluster (spacecraft) , coupling (piping) , materials science , condensed matter physics , carbon fibers , substrate (aquarium) , molecular physics , chemical physics , physics , nanotechnology , geometry , quantum mechanics , mathematics , computer science , telecommunications , metallurgy , composite material , oceanography , geology , composite number , programming language
AbstractTwo approaches are proposed to the problem of the coupling of adsorbed particles with atoms of a zigzag edge of graphene formed on a metal substrate. The first approach is based on the Kalkstein and Soven scheme, which makes it possible to determine the electronic structure of a semi-infinite graphene sheet. The second approach is based on a cluster model of a zigzag edge. Analytical expressions are obtained for the local densities of the system’s states and the occupation numbers of a carbon adatom and an adparticle. The case of an isolated adparticle is considered in detail, and a method of taking into account the dipole–dipole interaction of particles aligned along the edge is proposed.