Topological Transition in Spiral Elastic Valley Metamaterials
نویسندگان
چکیده
Elastic valley metamaterials offer an excellent platform to manipulate elastic waves and have potential applications in energy harvesting elastography. Here we introduce a series of strategies realize topological transition spiral by parameter modulations. We show the evolution Berry curvature Chern number as function inherent parameters spiral, which further results general scheme achieve edge states. Our strategy leverages multiple degrees freedom provide enhanced opportunities for desired
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ژورنال
عنوان ژورنال: Physical review applied
سال: 2021
ISSN: ['2331-7043', '2331-7019']
DOI: https://doi.org/10.1103/physrevapplied.15.014058