Reference : Topological States in Multi-Orbital Honeycomb Lattices of HgTe (CdTe) Quantum Dots
Scientific congresses, symposiums and conference proceedings : Paper published in a journal
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/10993/22730
Topological States in Multi-Orbital Honeycomb Lattices of HgTe (CdTe) Quantum Dots
English
Beugeling, Wouter [Max-Planck-Institut für Physik komplexer Systeme]
Kalesaki, Efterpi mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
Delerue, Christophe [UMR CNRS 8520 > IEMN – Département ISEN]
Niquet, Yann-Michel [Université Grenoble Alpes & CEA, INAC-SP2M, L_Sim]
Vanmaekelbergh, Daniel [University of Utrecht > Debye Institute for Nanomaterials Science]
Morais Smith, Cristiane [Utrecht University > Institute for Theoretical Physics, Center for Extreme Matter and Emergent Phenomena]
2015
ECS Transactions
The Electrochemical Society
69
5
ECS Transactions
81-88
No
Yes
International
1938-5862
1938-6737
Pennington
NJ
228th ECS Meeting
from 11-10-2015 to 15-10-2015
Phoenix, Arizona
USA
[en] We summarize recent theoretical works on artificial graphene realized by honeycomb lattices of semiconductor (CdSe, HgTe, CdTe) quantum dots forming a two-dimensional single-crystalline sheet. In the case of CdSe, we predict conduction bands with Dirac cones at two distinct energies and nontrivial flat bands. An analogous behavior is found in HgTe but, in addition, the strong spin-orbit coupling opens large topologically nontrivial gaps, leaving a flattened band detached from the others. We deduce that honeycomb lattices of HgTe quantum dots may constitute promising platforms for the observation of a fractional Chern insulator or a fractional quantum spin Hall phase. Similar predictions are made for CdTe but with smaller nontrivial gaps.
http://hdl.handle.net/10993/22730
10.1149/06905.0081ecst

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