Observation of a topological nodal surface and its surface-state arcs in an artificial acoustic crystal

Here, the authors report on the experimental observation of a twofold symmetry enforced topological nodal surface in a 3D chiral acoustic crystal. The demonstrated nodal surface carries a topological charge of 2, constituting the first realization of higher-dimensional topologically-charged band deg...

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Autores principales: Yihao Yang, Jian-ping Xia, Hong-xiang Sun, Yong Ge, Ding Jia, Shou-qi Yuan, Shengyuan A. Yang, Yidong Chong, Baile Zhang
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2019
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Acceso en línea:https://doaj.org/article/9752a174d11b44c7a7caefede9aafb40
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