Physics for Electronics Engineering: Unit I: Crystallography
Lattice Parameters of the Unit Cell
Crystallography
The unit cell is constructed if the distance between two neighbouring lattice points along three directions and angles between them are known.
LATTICE
PARAMETERS OF THE UNIT CELL
The unit cell is constructed if the
distance between two neighbouring lattice points along three directions and
angles between them are known.
The distance between two neighbouring
lattice points is the edge of the unit cell. The lengths OA, OB, OC in three
axes OX, OY and OZ are the axial lengths
or intercepts. (Fig. 1.8)
In fig 1.8, the axial lengths OA = a, OB = b and OC = c are known as intercepts a, b and c along three axes.
Interfacial
angles
The angles between three intercepts (α, β
and γ) are called interfacial angles.
The three intercepts and three
interfacial angles are the lattice parameters of the unit cell. They determine
the actual size and shape of the unit cell:
(a, b, c) – axial lengths, (α, β, γ) -
interfacial angles.
Physics for Electronics Engineering: Unit I: Crystallography : Tag: : Crystallography - Lattice Parameters of the Unit Cell
Physics for Electronics Engineering: Unit I: Crystallography
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Physics for Electronics Engineering
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