Mechanical metamaterials made of freestanding quasi-BCC nanolattices of gold and copper with ultra-high energy absorption capacity

Abstract

The fabrication of freestanding 3D lattice structures with beam diameters less than 100 nm is a considerable challenge. Here, the authors report quasi-BCC nanolattices of gold and copper, featuring beam diameters as low as 34 nm, that demonstrate an exceptionally high capacity for energy absorption.