Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Intraband electron focusing in bilayer graphene
AU - Peterfalvi, Csaba
AU - Oroszlany, Laszlo
AU - Lambert, Colin
AU - Cserti, Jozsef
PY - 2012/6/21
Y1 - 2012/6/21
N2 - 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.
AB - 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.
U2 - 10.1088/1367-2630/14/6/063028
DO - 10.1088/1367-2630/14/6/063028
M3 - Journal article
VL - 14
SP - 063028
JO - New Journal of Physics
JF - New Journal of Physics
SN - 1367-2630
ER -