New quantum dots for quantum networks

Scientists from The Institute of Scientific and Industrial Research (SANKEN) at Osaka University, in collaboration with the Canadian National Research Council (NRC), developed a gallium arsenide (GaAs) quantum dot that can ...

Persistent swinging of electrons between atomic sites in crystals

This crystal lattice consists of a large number of unit cells with an identical atomic arrangement. In the elementary adiabatic picture, the motions of electrons in the crystal follow the motion of the atomic nuclei instantly, ...

Chaining atoms together yields quantum storage

Engineers at Caltech have developed an approach for quantum storage that could help pave the way for the development of large-scale optical quantum networks.

A non-invasive way to image Wigner crystals directly

A team of researchers at the University of California at Berkeley, working with a group at Lawrence Berkeley National Laboratory, has developed a non-invasive way to image Wigner crystals directly. In their paper published ...

How flawed diamonds 'lead' to flawless quantum networks

The color in a diamond comes from a defect, or "vacancy," where there is a missing carbon atom in the crystal lattice. Vacancies have long been of interest to electronics researchers because they can be used as 'quantum nodes' ...

Anchoring single atoms for catalysis

There is a dictum to "never change a running system." New methods can however be far superior to older ones. While to date chemical reactions are mainly accelerated by catalytic materials that comprise several hundreds of ...

Ultrafast charge transfer in Prussian blue analogues

Photoinduced charge transfers are an interesting electronic property of Prussian blue and some analogously structured compounds. A team of researchers has now been able to elucidate the ultrafast processes in the light-induced ...

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Crystal structure

In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms in a crystal. A crystal structure is composed of a motif, a set of atoms arranged in a particular way, and a lattice. Motifs are located upon the points of a lattice, which is an array of points repeating periodically in three dimensions. The points can be thought of as forming identical tiny boxes, called unit cells, that fill the space of the lattice. The lengths of the edges of a unit cell and the angles between them are called the lattice parameters. The symmetry properties of the crystal are embodied in its space group. A crystal's structure and symmetry play a role in determining many of its properties, such as cleavage, electronic band structure, and optical properties.

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