Journal
JOURNAL OF PHYSICS-CONDENSED MATTER
Volume 23, Issue 27, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/23/27/275801
Keywords
-
Categories
Funding
- Belgian Federal Science Policy Office
- European Commission
- Third World Academy of Sciences [09-188 RG/PHYS/AS-I]
- CNPq [555183/2005-0]
- PRONEX/FUNCAP
- CAPES
- Bilateral programme between Flanders and Brazil
- CNPq-FWO
- Belgian Science Policy (IAP)
- Flemish Science Foundation (FWO-Vl)
Ask authors/readers for more resources
We investigate the dynamics of a charged particle moving in a graphene layer and in a two-dimensional electron gas, where it obeys the Dirac and the Schrodinger equations, respectively. The charge carriers are described as Gaussian wavepackets. The dynamics of the wavepackets is studied numerically by solving both quantum-mechanical and relativistic equations of motion. The scattering of such wavepackets by step-like magnetic and potential barriers is analysed for different values of wavepacket energy and width. We find: (1) that the average position of the wavepacket does not coincide with the classical trajectory, and (2) that, for slanted incidence, the path of the centre of mass of the wavepacket does not have to penetrate the barrier during the scattering process. Trembling motion of the charged particle in graphene is observed in the absence of an external magnetic field and can be enhanced by a substrate-induced mass term.
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