Corrigendum to “A novel 3D topological metamaterial for controllability of polarization-dependent multilayer elastic waves” [Compos B: Eng 275 (2024) 111341]

In [1], Dorin et al. pioneered and proposed a 3D topological metamaterial that utilizes multimodal local resonance to obtain layer-, polarization-, and frequency-selective elastic wave control over multiple frequency bands, which are novel discoveries that have not been explored in the past. Using a similar 3D metamaterial structure to the one introduced by Dorin et al. [1], the authors proposed a new waveguiding analysis that also shows controllability of polarization-dependent, layer-dependent, and multiband elastic waves but uses different physical principles and working techniques [2]. In Ref. [1], the proposed unitcell is a C_3v symmetry structure arranged in a rhombus, while in Ref. [2], the proposed unitcell is a C_6v symmetry structure arranged in a hexagon. The former relies on the quantum valley Hall effect (QVHE) and the variation of valley Chern number, while the latter is based on the quantum spin Hall effect (QSHE) and the variation of spin Chern number. The two papers present distinct physical principles and different working techniques. Nevertheless, the basic 3D metamaterial structures are similar, although one with a rhombus configuration [1] while the other with a hexagonal configuration [2]. It is regrettable that the present authors mistakenly overlooked to cite the relevant paper [1] that provided inspiration for this work in Ref. [2] due to a mistake while using Endnote and plugging of incorrect citation database when preparing the original manuscript [2]. The missing paper [1] is amended here in this corrigendum. The authors would like to apologise for any inconvenience caused. © 2024 Elsevier Ltd.