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3D-printed metamaterials that stretch and fail by design
Caption:This image of a woven deformable metamaterial was taken with a scanning electron microscope. @Image courtesy of the researchers. New framework supports design and fabrication of compliant materials such as printable textiles and functional foams, letting users predict deformation and material failure. Metamaterials — materials whose properties are primarily dictated by their internal microstructure, and not their chemical makeup — have been redefining the engineering
Feb 93 min read


Dynamic tuning of Bloch modes in anisotropic phonon polaritonic crystals
Figure | Dynamic tuning of Bloch modes in the α-MoO₃ PoC/graphene device. a , Schematic of an α-MoO 3 PoC/graphene device, consisting of a square periodically perforated α-MoO 3 /graphene heterostructure on a SiO 2 (285 nm)/Si substrate. b Theoretically calculated band structure of the α-MoO 3 PoC as a function of E F at a fixed frequency of 931 cm −1 . The yellow dashed lines indicate the free space light cone. Inset: the first Brillouin zone of the square-type PoC. Cre
Feb 33 min read


UCLA study sets new benchmarks for 3D, atom-by-atom maps of disordered materials
UCLA study sets new benchmarks for 3D, atom-by-atom maps of disordered materials @ UCLA Researchers at the California NanoSystems Institute at UCLA published a step-by-step framework for determining the three-dimensional positions and elemental identities of atoms in amorphous materials. These solids, such as glass, lack the repeating atomic patterns seen in a crystal. The team analyzed realistically simulated electron-microscope data and tested how each step affected accura
Feb 33 min read


A slight twist, a big change: Atomic registry reshapes electrons
It has been revealed that simply twisting and stacking two layers of oxide crystals can allow the atomic arrangement itself to control the behavior of electrons. Much like the new patterns that emerge when two meshes are overlapped and rotated, a twisted oxide interface forms specific atomic configurations that act as an “invisible fence,” either trapping or repelling electrons. A research team from Korea has elucidated the mechanism underlying this phenomenon in twisted oxid
Jan 282 min read


Scientists engineer unsinkable metal tubes
More than a century after the Titanic sank, engineers still have hopes of someday creating “unsinkable” ships. In a step toward reaching that lofty goal, researchers at the University of Rochester’s Institute of Optics have developed a new process that turns ordinary metal tubes unsinkable—meaning they will stay afloat no matter how long they are forced into water or how heavily they are damaged.
Jan 282 min read


3D printed surfaces help atoms play ball to improve quantum sensors
Scientists have created 3D printed surfaces featuring intricate textures that can be used to bounce unwanted gas particles away from quantum sensors, allowing useful particles like atoms to be delivered more efficiently, which could help improve measurement accuracy. The researchers from the University of Nottingham’s School of Physics and Astronomy created intricate, fine-scale surface textures that preferentially bounce incident particles in particular directions. This can
Jan 232 min read
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