unit cell

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unit cell

n.
The smallest building block of a crystal, consisting of atoms, ions, or molecules, whose geometric arrangement defines a crystal's characteristic symmetry and whose repetition in space produces a crystal lattice.

unit cell

n
(Chemistry) crystallog the smallest group of atoms, ions, or molecules that is characteristic of a particular crystal lattice

u′nit cell`


n.
the simplest unit of a regular crystal lattice.
[1935–40]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.unit cell - the smallest group of atoms or molecules whose repetition at regular intervals in three dimensions produces the lattices of a crystal
building block, unit - a single undivided natural thing occurring in the composition of something else; "units of nucleic acids"
References in periodicals archive ?
Demonstrations showing complete realization of 180[degrees] phase shifter (4 x 1mm) employing a cascaded arrangement of six similar 30[degrees] unit cells are also included.
Figure 14(a) shows the tensile true stress-true strain curves for the unit cells with a particle and a void for the cast iron with the graphite volume fraction of 4.
Among their topics are the accurate determination of the position and shape of heavy-atom replacement groups in proteins, processing oscillation diffraction data for very large unit cells with an automatic convolution technique and profile fitting, the three-dimensional structure of canine parvovirus and its functional implications, combining electron microscopic with X-ray crystallographic structures, and structural changes of envelope proteins during alphavirus fusion.
A structured color filtering device comprising: one or more unit cells, each unit cell comprising: a substrate having a surface with a step function surface profile having two or more discrete levels formed therein, wherein the step function surface profile forms in the surface a plurality of grooves arranged in a fundamentally symmetric pattern having a periodic groove pitch, wherein when ordinary light is incident on the surface, the surface is structured to diffract light having a predetermined wavelength toward observation points at all polar angles above the surface greater than a predetermined incident angle.
Representative results from the CFD solutions can be seen in Figure 6, which shows several repeated unit cells of the v5 impeller.
In this work we intend to pursue further on this subject, by associating the masses of the proton and of the electron to the volumes of unit cells in the momentum space, with each unit cell having its appropriate size.
3] consisting of 3 x 3 unit cells is shown in Figure 3.
Safwat, "Microstrip-fed monopole antennas loaded with CRLH unit cells," IEEE Transactions on Antennas and Propagation, Vol.
Figure 6(a) shows that a 540 mm x 324 mm planar absorber has 18-by-12 unit cells composed of a bowtie in Unit Cell I.
In this paper, the proposed CRLH antenna is composed of two unit cells, where the gap coupling between the spiral arms contributes to the series capacitance, and the metallic via hole at the end of one arm results in the shunt inductance; therefore, the footprint in the transverse direction can be reduced.
Unlike FSS arrays which simply consist of freestanding metal apertures or strips, this quasi-optical spatial filter is a substrate based FSS [15, 16] with periodic unit cells.
According to the proposed model, the initial bubble diameter is determined on the basis of the volume of the closed space inside the unit cells.