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5 papers · 2 filters
Effects of the spin-orbital coupling on the vacancy-induced magnetism on the honeycomb lattice
Weng-Hang Leong, Shun-Li Yu, Jian-Xin Li
The local magnetism induced by vacancies in the presence of the spin-orbital interaction is investigated based on the half-filled Kane-Mele-Hubbard model on the honeycomb lattice.…
Experimental Electronic Structure of the Metallic Pyrochlore Iridate Bi2Ir2O7
Q. Wang, Y. Cao, X. G. Wan +5
Angle-resolved photoemission measurements have been performed on Bi2Ir2O7 single crystals, a prototypical example of the pyrochlore iridates. The density of states, the Fermi surfa…
Interplay between Point-Group Symmetries and the Choice of the Bloch Basis in Multiband Models
Stefan A. Maier, Carsten Honerkamp, Qiang-Hua Wang
We analyze the point-group symmetries of generic multiband tight-binding models with respect to the transformation properties of the effective interactions. While the vertex functi…
Observation of in-gap surface states in the Kondo insulator SmB6 by photoemission
J. Jiang, S. Li, T. Zhang +13
Kondo insulators (KIs) are strongly correlated materials in which the interactions between 4f and conduction electrons lead to a hybridization gap opening at low temperature 1-2. S…
Edge Excitations in Fractional Chern Insulators
Wei-Wei Luo, Wen-Chao Chen, Yi-Fei Wang +1
Recent theoretical works have demonstrated the realization of fractional quantum anomalous Hall states (also called fractional Chern insulators) in topological flat band lattice mo…