Journal
APPLIED PHYSICS LETTERS
Volume 99, Issue 12, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3640224
Keywords
-
Categories
Funding
- NRI-INDEX
Ask authors/readers for more resources
We demonstrate a way to open a gate-tunable transmission gap across graphene p-n junction by introducing an additional barrier in the middle that replaces Klein tunneling with regular tunneling, allowing us to modulate current by several orders of magnitude. The gap arises by angularly sorting electrons by their longitudinal energy and filtering out the hottest, normally incident electrons with the tunnel barrier, and the rest through total internal reflection. Using analytical and atomistic numerical studies, we show that the barrier causes graphene p-n junction act as a metamaterial with metal-insulator transition and overcome the KTIn10/decade limit for subthreshold conduction. (C) 2011 American Institute of Physics. [doi:10.1063/1.3640224]
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available