Matches in SemOpenAlex for { <https://semopenalex.org/work/W2788699494> ?p ?o ?g. }
- W2788699494 abstract "Zak phase, which refers to the Berry's phase picked up by a particle moving across the Brillouin zone, characterizes the topological properties of Bloch bands in one-dimensional periodic system. Here the Zak phase in dimerized one-dimensional locally resonant metamaterials is investigated. It is found that there are some singular points in the bulk band across which the Bloch states contribute {pi} to the Zak phase, whereas while in the rest of the band the contribution is nearly zero. These singular points associated with zero reflection are caused by two different mechanisms: the dimerization-independent anti-resonating of each branch, and the dimerization-dependent destructive interference in multiple backscattering. The structure undergoes a topological transition point in the band structure where the band inverts and the Zak phase, which is determined by the numbers of singular points in the bulk band, changes following a shift in dimerization parameter. Finally, the interface state between two dimerized metamaterial structures with different topological property in the first band gap is demonstrated experimentally. The quasi-one-dimensional configuration of the system allows one to explore topology-inspired new methods and applications in the sub-wavelength scale." @default.
- W2788699494 created "2018-03-06" @default.
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- W2788699494 date "2018-05-14" @default.
- W2788699494 modified "2023-10-17" @default.
- W2788699494 title "Zak phase and band inversion in dimerized one-dimensional locally resonant metamaterials" @default.
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- W2788699494 doi "https://doi.org/10.1103/physrevb.97.195307" @default.
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