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A collection of Dirac cones on the interface between two topological insulators. There are six Dirac cones because of the crystallographic symmetry. [Ryuji Takahashi and Shuichi Murakami, Phys. Rev. Lett. 107, 166805 (2011)] |
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A collection of Dirac cones on the interface between two topological insulators. There are six Dirac cones because of the crystallographic symmetry. [Ryuji Takahashi and Shuichi Murakami, Phys. Rev. Lett. 107, 166805 (2011)] |