Weak Topological Insulator
Within this chapter, I will switch from the class of strong topological insulators to its counterpart, the class of weak topological insulators (WTIs). As already discussed in the theoretical part of this work (cf. section 2.2.6), the term weak is rather misleading as it is referring to the wrong, initial believe that WTIs would be unstable with respect to any type of disorder [14, 13]. However recent theoretical work has suggested the opposite, namely that their surface conductivity is even stabilized by random disorder [15, 16, 17, 18, 19, 20, 21].
KeywordsEdge State Step Height Space Layer Step Edge Honeycomb Lattice
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