The Two-Dimensional MnO2/Graphene Interface: Half-metallicity and Quantum Anomalous Hall State
Type
ArticleKAUST Department
Computational Physics and Materials Science (CPMS)Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
Date
2016-01-21Online Publication Date
2016-01-21Print Publication Date
2016-02-04Permanent link to this record
http://hdl.handle.net/10754/579565
Metadata
Show full item recordAbstract
We explore the electronic properties of the MnO2/graphene interface by first-principles calculations, showing that MnO2 becomes half-metallic. MnO2 in the MnO2/graphene/MnO2 system provides time-reversal and inversion symmetry breaking. Spin splitting by proximity occurs at the Dirac points and a topologically nontrivial band gap is opened, enabling a quantum anomalous Hall state. The half-metallicity, spin splitting, and size of the band gap depend on the interfacial interaction, which can be tuned by strain engineering.Citation
The Two-Dimensional MnO2/Graphene Interface: Half-metallicity and Quantum Anomalous Hall State 2015:151007134936006 The Journal of Physical Chemistry CPublisher
American Chemical Society (ACS)Additional Links
http://pubsdc3.acs.org/doi/10.1021/acs.jpcc.5b08272ae974a485f413a2113503eed53cd6c53
10.1021/acs.jpcc.5b08272