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Topological transition in spiral elastic valley metamaterials
- Source :
- Phys. Rev. Applied 15, 014058 (2021)
- Publication Year :
- 2020
-
Abstract
- Elastic valley metamaterials offer an excellent platform to manipulate elastic waves and have potential applications in energy harvesting and elastography. Here we introduce a series of strategies to realize topological transition in spiral elastic valley metamaterials by parameter modulations. We show the evolution of Berry curvature and valley Chern number as a function of inherent parameters of spiral, which further results in a general scheme to achieve topological valley edge states. Our strategy leverages multiple degrees of freedom in spiral elastic valley metamaterials to provide enhanced opportunities for desired topological states.
- Subjects :
- Physics - Applied Physics
Condensed Matter - Materials Science
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. Applied 15, 014058 (2021)
- Publication Type :
- Report
- Accession number :
- edsarx.2011.06221
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevApplied.15.014058