Tunable Topological Acoustic Tamm States in Comblike Structures Based on Band Inversion around Flat Bands

Tunable Topological Acoustic Tamm States in Comblike Structures Based on Band Inversion around Flat Bands

We investigate the existence of acoustic Tamm states at the interface between two one-dimensional (1D) comblike phononic crystals (PnCs) based on slender tubes and discuss their topological or trivial character. The PnCs consist of stubs grafted periodically along a waveguide and the two crystals di...

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Bibliographic Details
Main Authors: Soufyane Khattou, Yamina Rezzouk, Madiha Amrani, Mohamed El Ghafiani, El Houssaine El Boudouti, Abdelkrim Talbi, Bahram Djafari-Rouhani
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Crystals
Subjects:
topological interface states
phononic crystals
comblike structure
Zak phase
Online Access:https://www.mdpi.com/2073-4352/12/12/1685

Internet

https://www.mdpi.com/2073-4352/12/12/1685

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