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 - Sublattice ordering in a dilute ensemble of monovalent adatoms on graphene
AU - Cheianov, Vadim
AU - Syljuasen, O.
AU - Altshuler, B. L.
AU - Falko, Vladimir
AU - Cheianov, Vadim
PY - 2010/3
Y1 - 2010/3
N2 - When adsorbents attach themselves to carbons in the honeycomb lattice of graphene, they may preferentially take positions on one of its two sublattices, thus breaking the global lattice symmetry. This leads to opening a gap in the electronic spectrum. We show that such a sublattice ordering may spontaneously occur in a low-density ensemble of adatoms adsorbed on graphene, due to the long-range interaction between them mediated by electrons. As a result sublattice-ordered domains may form, with electronic properties characteristic of a two-dimensional topological insulator. Copyright (C) EPLA, 2010
AB - When adsorbents attach themselves to carbons in the honeycomb lattice of graphene, they may preferentially take positions on one of its two sublattices, thus breaking the global lattice symmetry. This leads to opening a gap in the electronic spectrum. We show that such a sublattice ordering may spontaneously occur in a low-density ensemble of adatoms adsorbed on graphene, due to the long-range interaction between them mediated by electrons. As a result sublattice-ordered domains may form, with electronic properties characteristic of a two-dimensional topological insulator. Copyright (C) EPLA, 2010
U2 - 10.1209/0295-5075/89/56003
DO - 10.1209/0295-5075/89/56003
M3 - Journal article
VL - 89
SP - -
JO - EPL
JF - EPL
SN - 0295-5075
IS - 5
M1 - 56003
ER -