Phononic canonical quasicrystalline waveguides

I am glad to present a recent set of papers highlighting the noteworthy properties of 1D periodic waveguides generated by a quasicrystalline sequence. The concept of canonical configuration explains how to obtain a periodic frequency spectrum and why this outcome is connected to trace mapping:  

-->M. Gei, Z. Chen, F. Bosi, L. Morini (2020) Appl. Phys. Lett. 116, 241903 - https://doi.org/10.1063/5.0013528

-->L. Morini, Z.G. Tetik, G. Shmuel, M. Gei (2019) Phil. Trans. R. Soc. A 378, 20190240 - http://dx.doi.org/10.1098/rsta.2019.0240

-->L. Morini, M. Gei (2018) J. Mech. Phys. Solids 119, 83-103 - https://doi.org/10.1016/j.jmps.2018.06.007

In the companion paper, it is shown that quasicrystalline-generated laminates may widen the possibilities to achieve negative refraction, with respect to the typical two-component unit cell, for antiplane shear waves: 

-->L. Morini, Y. Eyzat, M. Gei (2019) J. Mech. Phys. Solids 124, 282-298 - https://doi.org/10.1016/j.jmps.2018.10.016