Graphene is locally two-dimensional but not flat. Nanoscale ripples appear in suspended samples and rolling up often occurs when boundaries are not fixed. We address this variety of graphene geometries by classifying all ground-state deformations of the hexagonal lattice with respect to configurational energies including two- and three-body terms. As a consequence, we prove that all ground-state deformations are either periodic in one direction, as in the case of ripples, or rolled up, as in the case of nanotubes.
Graphene ground states
U Stefanelli
2018
Abstract
Graphene is locally two-dimensional but not flat. Nanoscale ripples appear in suspended samples and rolling up often occurs when boundaries are not fixed. We address this variety of graphene geometries by classifying all ground-state deformations of the hexagonal lattice with respect to configurational energies including two- and three-body terms. As a consequence, we prove that all ground-state deformations are either periodic in one direction, as in the case of ripples, or rolled up, as in the case of nanotubes.File in questo prodotto:
| File | Dimensione | Formato | |
|---|---|---|---|
|
prod_388482-doc_152490.pdf
non disponibili
Descrizione: Graphene ground states
Tipologia:
Versione Editoriale (PDF)
Dimensione
1.42 MB
Formato
Adobe PDF
|
1.42 MB | Adobe PDF | Visualizza/Apri Richiedi una copia |
|
prod_388482-doc_152489.pdf
accesso aperto
Descrizione: Graphene ground states
Tipologia:
Versione Editoriale (PDF)
Dimensione
335.12 kB
Formato
Adobe PDF
|
335.12 kB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
