Magnetism of Topological Boundary States Induced by Boron Substitution in Graphene Nanoribbons

Topological phase transition in chiral graphene nanoribbons: from edge bands to end states

“…The good agreement of our experimental results with the band structure obtained by TB simulations indicates that manifestations of Coulomb interactions are not very prominent in these measurements, probably due to the charge doped state of the ribbons and by their charge screening on a metallic substrate. However, interesting scenarios can be expected in the presence of electron–electron interactions such as for chGNRs on insulating layers 36 or free standing 37 . In Supplementary Note 9 we show results of mean-field Hubbard simulations of free chGNRs exploring the effect of a finite on-site Coulomb interaction U on their band structure and spin polarization, both in the neutral and in the charged state.…”

“…The effect of electron–electron interactions on the “bulk” band structure is smaller in the 3,2,8-chGNR because of its wider gap 39 , and their edge bands show weaker or no spin polarization. In wide ribbons, however, the larger degree of localization of their SPT end states augment their potential to build spin-polarized end states 37 , 39 , 40 in the charge undoped state.…”

Atomically precise graphene nanoribbons: interplay of structural and electronic properties

“…218,220 Individual boron dimers were recently found to induce p-paramagnetism in 7-AGNRs due to the local disruption of its extended p-system. 221 A summary of the electronic band gaps and effective masses of the discussed GNRs is given in Table 1.…”

Fully fused boron-doped polycyclic aromatic hydrocarbons: their synthesis, structure–property relationships, and self-assembly behavior in aqueous media

“…Boron-doped graphene nanoribbons (GNRs) 6 with well-defined boron-doping positions were also synthesized via metal-surface reactions, and their electronic and magnetic properties have been investigated. 16 …”