Quantum interference and Klein tunnelling in graphene heterojunctions
Abstract
The observation of oscillations in the conductance characteristics of narrow graphene p–n-junctions confirms their ability to collimate ballistic carriers. Moreover, the phase of these oscillations at low magnetic field suggests the occurrence of the perfect transmission of carriers normal to the junction as a direct result of the Klein effect.
- Publication:
-
Nature Physics
- Pub Date:
- March 2009
- DOI:
- arXiv:
- arXiv:0808.0855
- Bibcode:
- 2009NatPh...5..222Y
- Keywords:
-
- Condensed Matter - Mesoscopic Systems and Quantum Hall Effect;
- Condensed Matter - Materials Science
- E-Print:
- 13 pages and 6 figures including supplementary information. The paper has been modified in light of new theoretical results available at arXiv:0808.0488