Selective random defects on a honeycomb lattice induce a topological transition in certain regimes by modulating hopping amplitudes in an effective model.
The Hamiltonian is given by ˆH= X i Miˆc† i ˆci + X ⟨i,j⟩ t1ˆc† i ˆcj + X ⟨⟨i,j⟩⟩ t2eiϕi j ˆc† i ˆcj +h.c
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Topological transition induced by selective random defects on a honeycomb lattice
Selective random defects on a honeycomb lattice induce a topological transition in certain regimes by modulating hopping amplitudes in an effective model.