TY  - JOUR
A1  - Guterding, Daniel
A1  - Jeschke, Harald O.
A1  - Valentí, Roser
T1  - Prospect of quantum anomalous Hall and quantum spin Hall effect in doped kagome lattice Mott insulators
T2  - Scientific reports
N2  - Electronic states with non-trivial topology host a number of novel phenomena with potential for revolutionizing information technology. The quantum anomalous Hall effect provides spin-polarized dissipation-free transport of electrons, while the quantum spin Hall effect in combination with superconductivity has been proposed as the basis for realizing decoherence-free quantum computing. We introduce a new strategy for realizing these effects, namely by hole and electron doping kagome lattice Mott insulators through, for instance, chemical substitution. As an example, we apply this new approach to the natural mineral herbertsmithite. We prove the feasibility of the proposed modifications by performing ab-initio density functional theory calculations and demonstrate the occurrence of the predicted effects using realistic models. Our results herald a new family of quantum anomalous Hall and quantum spin Hall insulators at affordable energy/temperature scales based on kagome lattices of transition metal ions.
Y1  - 2016
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/42231
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-422316
SN  - 2045-2322
N1  - This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
VL  - 6
IS  - Artikel 25988
SP  - 1
EP  - 8
PB  - Nature Publishing Group
CY  - London
ER  -