a unit cell is a repeating unit formed by the vectors spanning the points of a lattice. Despite its suggestive name, the unit cell (unlike a unit vector...

symmetry. The Wigner–Seitz cell is a means to achieve this. A Wigner–Seitz cell is an example of a primitive cell, which is a unit cell containing exactly one...

unit cells. The unit cell is defined as the smallest repeating unit having the full symmetry of the crystal structure. The geometry of the unit cell is...

multiple of a unit cell.) There are mainly two types of unit cells: primitive unit cells and conventional unit cells. A primitive cell is the very smallest...

a} of the primitive cell below equals 1 2 a 2 + b 2 {\displaystyle {\frac {1}{2}}{\sqrt {a^{2}+b^{2}}}} of the conventional cell above. Oblique rhombic...

structure is described by a unit cell repeating periodically over space. There are an infinite number of choices for unit cells, with different shapes and...

Transmitarrays consist of an array of unit cells placed above a source (feeding) antenna. Phase shifts are applied to the unit cells, between elements on the receive...

crystal (periodic) pattern. The selection of an origin and a basis define a unit cell, a parallelotope (i.e., generalization of a parallelogram (2D) or parallelepiped...

number of atoms per unit cell of volume Vcell. The unit cell of silicon has a cubic packing arrangement of 8 atoms, and the unit cell volume may be measured...

structural/organizational unit of all organisms, and that all cells come from pre-existing cells. Cells are the basic unit of structure in all living...

The Cell Broadband Engine (Cell/B.E.) is a 64-bit multi-core processor and microarchitecture developed by Sony, Toshiba, and IBM—an alliance known as...

group with 52 atoms per unit cell. The alloy Cr9Mo21Ni20 is the prototype for the P-phase. It has a primitive orthorhombic cell with 56 atoms. The alloy...

of particles in the unit cell, Vparticle is the volume of each particle, and Vunit cell is the volume occupied by the unit cell. It can be proven mathematically...

Look up cell in Wiktionary, the free dictionary. Cell most often refers to: Cell (biology), the functional basic unit of life Cellphone, a phone connected...

array of unit cells, illuminated by a feeding antenna (source of electromagnetic waves). The feeding antenna is usually a horn. The unit cells are usually...

the cubic (or isometric) crystal system is a crystal system where the unit cell is in the shape of a cube. This is one of the most common and simplest...

approximating a large (infinite) system by using a small part called a unit cell. PBCs are often used in computer simulations and mathematical models....

two tetrahedrally bonded atoms in each primitive cell, separated by ⁠1/4⁠ of the width of the unit cell in each dimension. The diamond lattice can be viewed...

intermetallic compounds characterized by the following structural features: large unit cells, comprising some tens up to thousands of atoms, the presence of well-defined...

the formula unit is used. The number of formula units (Z) and the dimensions of the crystallographic axes are used in defining the unit cell. Peter Atkins...

family, the crystal is conventionally described by a right rhombic prism unit cell with two equal axes (a by a), an included angle of 120° (γ) and a height...

four formula units per unit cell (Z = 4). Described in this way, various sources give the following values for the parameters of the unit cell, which has...

three-dimensional array (a Bravais lattice) of atoms and molecules; a single unit cell is repeated indefinitely along three principal directions. In the 19th...

complications, there are also two definitions of unit cell for calcite. One, an older "morphological" unit cell, was inferred by measuring angles between faces...

by a centered rhombic unit cell, while the centered rectangular lattice can also be described by a primitive rhombic unit cell. Note that the length a...

dipyramid. The space group is Pmcn. There are four formula units per unit cell (Z = 4) and the unit cell parameters are a = 5.1 Å, b = 8.4 Å, c = 6.0 Å. Strontianite...

activity. Brookite also has a larger cell volume than either anatase or rutile, with 8 TiO2 groups per unit cell, compared with 4 for anatase and 2 for...

formula unit per unit cell (Z = 1), or as a larger pseudo-orthorhombic cell with β close to 90° and Z = 2. Cell Parameters for the monoclinic cell: a = 13...

smaller unit cell, while the face-centered tetragonal lattice is equivalent to the body-centered tetragonal lattice with a smaller unit cell. The point...

double carbonates. The number of formula units, Z, in the triclinic unit cell is given as 10 or 12, and the unit cell parameters are a = 17.38 Å, b = 14.40...