Peterfalvi, Csaba and Oroszlany, Laszlo and Lambert, Colin and Cserti, Jozsef (2012) Intraband electron focusing in bilayer graphene. New Journal of Physics, 14. 063028. ISSN 1367-2630Full text not available from this repository.
We propose an implementation of a valley selective electronic Veselago lens in bilayer graphene. We demonstrate that in the presence of an appropriately oriented potential step, low-energy electrons radiating from a point source can be re-focused coherently within the same band. The phenomenon is due to the trigonal warping of the band structure that leads to a negative refraction index. We show that the interference pattern can be controlled by an external mechanical strain.
|Journal or Publication Title:||New Journal of Physics|
|Subjects:||Q Science > QC Physics|
|Departments:||Faculty of Science and Technology > Physics|
|Deposited On:||18 Sep 2012 16:11|
|Last Modified:||26 Feb 2017 03:32|
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