Page 46 - Semiconductor For Micro- and Nanotechnology An Introduction For Engineers

Crystal Structure

T MI
TC MP

OC
OF
OI
OP

HP HR
TI
TP

CF
CI
CP

Figure 2.12. The fourteen Bravais lattice types. CP: Cubic P; CI: Body-centered cubic;
CF: Face-centered cubic; a = b = c , α = β = γ = 90° . TP: Tetragonal; TI: Body-
centered tetragonal; a = b ≠ c , α = β = γ = 90° . HP: Hexagonal; HR: Hexagonal R;
a = b ≠ c , α = β = 90° , γ = 120° (this not a separate Bravais lattice type). OP:
Orthorhombic; OI: Body-centered orthorhombic; OF: Face-centered orthorhombic; OC:
C-orthorhombic; a ≠≠ c , α = β = γ = 90° . MP: Monoclinic; MI: Face-centered
b
monoclinic; a ≠≠ c , α = β = 90° ≠ γ . T: Trigonal; a = b = c , α ≠ β ≠ γ . TC: Tri-
b
clinic; a ≠≠ c , α ≠ β ≠ γ . abc,, refer to lattice pitches; αβγ,, to lattice vector
b
angles.

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