3 papers
cond-mat.mtrl-sci2024
Lines of Bound States in the Continuum in a Phononic Crystal Slab
Lin Yang, Riyi Zheng, Sheng Zhang +7
We demonstrate that bound states in the continuum (BICs) form continuous lines along high-symmetry directions of momentum space in a simple phononic crystal slab. Contrary to commo…
cond-mat.mes-hall2024
Observation of oriented Landau levels in Berry dipole semimetals
Qingyang Mo, Riyi Zheng, Cuicui Lu +3
Band crossing points, such as Weyl and Dirac points, play a crucial role in the topological classification of materials and guide the exploration of exotic topological phases. The…
cond-mat.mes-hall2023
Spin-dependent localization of helical edge states in a non-Hermitian phononic crystal
Junpeng Wu, Riyi Zheng, Jialuo Liang +5
As a distinctive feature unique to non-Hermitian systems, non-Hermitian skin effect displays fruitful exotic phenomena in one or higher dimensions, especially when conventional top…