In-Gap Edge and Domain-Wall States in Largely Perturbed Phononic Su–Schrieffer–Heeger Lattices
Topological states of matter have attracted significant attention due to their intrinsic wave-guiding and localization capabilities robust against disorders and defects in electronic, photonic, and phononic systems. Despite the above topological features that phononic crystals share with their elect...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-01-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/14/1/102 |
| _version_ | 1797339929789857792 |
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| author | Amir Rajabpoor Alisepahi Jihong Ma |
| author_facet | Amir Rajabpoor Alisepahi Jihong Ma |
| author_sort | Amir Rajabpoor Alisepahi |
| collection | DOAJ |
| description | Topological states of matter have attracted significant attention due to their intrinsic wave-guiding and localization capabilities robust against disorders and defects in electronic, photonic, and phononic systems. Despite the above topological features that phononic crystals share with their electronic and photonic counterparts, finite-frequency topological states in phononic crystals may not always survive. In this work, we discuss the survivability of topological states in Su–Schrieffer–Heeger models with both local and non-local interactions and larger symmetry perturbation. Although such a discussion is still about ideal mass-spring models, the insights from this study set the expectations for continuum phononic crystals, which can further instruct the application of phononic crystals for practical purposes. |
| first_indexed | 2024-03-08T09:54:42Z |
| format | Article |
| id | doaj.art-321d05bdb80b49d1a323e0048bc542f3 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-08T09:54:42Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-321d05bdb80b49d1a323e0048bc542f32024-01-29T13:51:36ZengMDPI AGCrystals2073-43522024-01-0114110210.3390/cryst14010102In-Gap Edge and Domain-Wall States in Largely Perturbed Phononic Su–Schrieffer–Heeger LatticesAmir Rajabpoor Alisepahi0Jihong Ma1Department of Mechanical Engineering, University of Vermont, Burlington, VT 05405, USADepartment of Mechanical Engineering, University of Vermont, Burlington, VT 05405, USATopological states of matter have attracted significant attention due to their intrinsic wave-guiding and localization capabilities robust against disorders and defects in electronic, photonic, and phononic systems. Despite the above topological features that phononic crystals share with their electronic and photonic counterparts, finite-frequency topological states in phononic crystals may not always survive. In this work, we discuss the survivability of topological states in Su–Schrieffer–Heeger models with both local and non-local interactions and larger symmetry perturbation. Although such a discussion is still about ideal mass-spring models, the insights from this study set the expectations for continuum phononic crystals, which can further instruct the application of phononic crystals for practical purposes.https://www.mdpi.com/2073-4352/14/1/102topological statesphononic crystalschiral symmetryphonon bandgap |
| spellingShingle | Amir Rajabpoor Alisepahi Jihong Ma In-Gap Edge and Domain-Wall States in Largely Perturbed Phononic Su–Schrieffer–Heeger Lattices Crystals topological states phononic crystals chiral symmetry phonon bandgap |
| title | In-Gap Edge and Domain-Wall States in Largely Perturbed Phononic Su–Schrieffer–Heeger Lattices |
| title_full | In-Gap Edge and Domain-Wall States in Largely Perturbed Phononic Su–Schrieffer–Heeger Lattices |
| title_fullStr | In-Gap Edge and Domain-Wall States in Largely Perturbed Phononic Su–Schrieffer–Heeger Lattices |
| title_full_unstemmed | In-Gap Edge and Domain-Wall States in Largely Perturbed Phononic Su–Schrieffer–Heeger Lattices |
| title_short | In-Gap Edge and Domain-Wall States in Largely Perturbed Phononic Su–Schrieffer–Heeger Lattices |
| title_sort | in gap edge and domain wall states in largely perturbed phononic su schrieffer heeger lattices |
| topic | topological states phononic crystals chiral symmetry phonon bandgap |
| url | https://www.mdpi.com/2073-4352/14/1/102 |
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