Mumbai university > FE > SEM 1 > Applied Physics 1

Marks: 3M

Year: Dec 2012

• The lattice constant, or lattice parameter, refers to the physical dimension of unit cells in a crystal lattice.

• Lattices in three dimensions generally have three lattice constants, referred to as a, b, and c, and angles α, β, and γ.

• In the above figure, α, β, and γ are all right angles.

• However, in the special case of cubic crystal structures, all of the constants are equal and we only refer to a.