The December JASA Express Letters cover features depictions of non-reciprocal Willis monatomic lattices. The cover images were created by the author of “Brillouin-zone definition in non-reciprocal Willis monatomic lattices,” Hasan B. Al Ba’ba’a. This article is also part of the Joint Special Issue on Wave Phenomena in Periodic, Near-Periodic, and Locally Resonant Systems.

This month’s issue also included a couple of Editor’s Pick you don’t want to miss:

Browse the rest of the issue at

Dec JASA Express Letters cover


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