The topology of surfaces 21 places a constraint on the total defect charge—for example the net charge on a sphere must be 4π, as exemplified by a soccer ball that has 12 ( = 4π/(π/3)) pentagons ...

(Nanowerk Spotlight) Researchers at the California NanoSystems Institute (CNSI) and the University of California, Los Angeles (UCLA) have found that the crystal structure of silver nanoparticles is an ...

Imperfections of crystal structure, especially edge dislocations of an elongated nature, deeply modify basic properties of the entire material and, in consequence, drastically limit its applications.

A crystalline material such as gold undergoing a permanent change in shape when loaded mechanically is the result of crystal plasticity. The scientific inquiry for the ideal strength against plastic ...

Quantum engineers have spent years trying to tame the fragility of qubits, only to be thwarted by the tiniest imperfections in the materials they use. Now a new line of research flips that problem on ...

Researchers observed the phase transition of topological defects formed by liquid crystal (LC) materials for the first time. The phase transition of topological defects can be difficult to understand ...

Mefenamic acid has variable bioavailability and tabletting issues because of its hydrophobic nature and poor material characteristics. Recrystallization of mefenamic acid was performed from three ...

Using two-photon excitation, Japanese scientists have, for the first time, observed the internal defects of semiconductor crystals in three-dimensions. Having studied defects to a depth of 200 µm in ...

For the first time, an experiment has directly imaged electron orbits in a high-magnetic field, illuminating an unusual collective behavior in electrons and suggesting new ways of manipulating the ...

(Nanowerk News) The surface properties of complex crystalline materials can be calculated reliably and automatically using only the fundamental laws of physics, thanks to a new computer-based method.