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Flatbands under correlated perturbations

Bodyfelt, Joshua; Leykam, Daniel; Danieli, Carlo; Yu, Xizoquan; Flach, Sergej


Flatband networks are characterized by the coexistence of dispersive and flatbands. Flatbands (FBs) are generated by compact localized eigenstates (CLSs) with local network symmetries, based on destructive interference. Correlated disorder and quasiperiodic potentials hybridize CLSs without additional renormalization, yet with surprising consequences: (i) states are expelled from the FB energy EFB, (ii) the localization length of eigenstates vanishes as ξ∼1/ln(E-EFB), (iii) the density of...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.113.236403


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