TY - JOUR
T1 - Stacking-dependent superstructures at stepped armchair interfaces of bilayer/trilayer graphene
AU - Kazemi Sheikh Shabani, Asieh
AU - Crampin, Simon
AU - Ilie, Adelina
PY - 2013/4/29
Y1 - 2013/4/29
N2 - We present the first study of quantum interference patterns at a bilayer-trilayer armchair interface, for different stacking sequences. Visualization using scanning tunneling microscopy and theoretical calculations provide direct evidence that near armchair edges electron behavior is dominated by the "hard" edge, where the layer is abruptly truncated, as opposed to the "soft" edges, where layers continue across the boundary. Intervalley reflection causes universal quenching of the wavefunction with a periodicity of three C atoms, while the exact interference patterns depend on the stacking sequence and appear to be robust to disorder and chemical terminations.
AB - We present the first study of quantum interference patterns at a bilayer-trilayer armchair interface, for different stacking sequences. Visualization using scanning tunneling microscopy and theoretical calculations provide direct evidence that near armchair edges electron behavior is dominated by the "hard" edge, where the layer is abruptly truncated, as opposed to the "soft" edges, where layers continue across the boundary. Intervalley reflection causes universal quenching of the wavefunction with a periodicity of three C atoms, while the exact interference patterns depend on the stacking sequence and appear to be robust to disorder and chemical terminations.
UR - http://www.scopus.com/inward/record.url?scp=84876993584&partnerID=8YFLogxK
UR - http://dx.doi.org/10.1063/1.4802796
U2 - 10.1063/1.4802796
DO - 10.1063/1.4802796
M3 - Article
AN - SCOPUS:84876993584
SN - 0003-6951
VL - 102
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 17
M1 - 163111
ER -