Theory of topological Kondo insulators
By M. Dzero, K. Sun, Piers Coleman, V. Galitski. 2011
158 citations recorded by the source corpus.
We examine how the properties of the Kondo insulators change when the symmetry of the underlying crystal field multiplets is taken into account. We employ the Anderson lattice model and consider its low-energy physics. We show that in a large class of crystal field configurations, Kondo insulators can develop a topological nontrivial ground state. Such topological Kondo insulators are adiabatically connected to noninteracting insulators with unphysically large spin-orbit coupling, and as such may be regarded as interaction-driven topological insulators. We analyze the entanglement entropy of the Anderson lattice model of Kondo insulators by evaluating its entanglement spectrum. Our results for the entanglement spectrum are consistent with the surface state calculations. Last, we discuss the construction of the maximally localized Wannier wave functions for generic Kondo insulators.
Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics
View Paper: https://www.semanticscholar.org/paper/a0e4b2a012758202b798dbe22ac031b0d9691a5f
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In Atomic and Molecular Physics, and Optics
In Condensed Matter Physics
Citations in the corpus
- Low-temperature surface conduction in the Kondo insulator SmB6 (2012, background): “s[5]. The very recent theoretical prediction of topological Kondo insulators[9 – 12] may shed some new light on these old puzzles. In particular, SmB 6 is predicted to be a topological Kondo insulator[9, 12, 14], a bulk insulator with a topologically-protected metallic surface at low temperature. De”
- Colloquium : Topological band theory (2016, background): “(Dzero et al. 2010; Dzero et al. 2012; Kim, Xia, and Fisk 2014) Other predicted TKI’s include SmS, (Li, Li, et al. 2014; Zhao, Lu, et al. 2014) and YB6 and YB12 as topological Kondo crystalline insulators.”