Szczegóły publikacji
Opis bibliograficzny
Imaging backscattering in graphene quantum point contacts / A. MREŃCA-KOLASIŃSKA, B. SZAFRAN // Physical Review. B ; ISSN 2469-9950. — Tytuł poprz.: Physical Review B, Condensed Matter and Materials Physics ; ISSN: 1098-0121. — 2017 — vol. 96 iss. 16, s. 165310-1–165310-7. — Bibliogr. s. 165310-7
Autorzy (2)
Dane bibliometryczne
| ID BaDAP | 110267 |
|---|---|
| Data dodania do BaDAP | 2017-12-20 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevB.96.165310 |
| Rok publikacji | 2017 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Physical Review, B |
Abstract
We study graphene quantum point contacts (QPCs) and imaging of the backscattering of the Fermi level wave function by potential introduced by a scanning probe. We consider both etched single-layer QPCs as well as the ones formed by bilayer patches deposited on the sides of the monolayer conducting channel. An atomistic tight-binding method is developed to effectively simulate an infinite graphene plane outside the QPCs using a computational box of a finite size. We demonstrate that in spite of the Klein phenomenon interference effects due to the backscattering at a circular n-p junction induced by the probe potential are visible in spatial conductance maps.
