Question

What is wigner-seitz cell. how iz wigner-seitz cell constructed?

Answer 1

Wigner -seitz cell is a means to achieve this .A wigner Switz cell is an eg. of a primitive cell, which is a unit cell containing exactly one lattice point. It's the locus of points in space that r closer to that lattice point that to any of the other lattice points
The cell may be chosen by first picking a lattice point In the case of a three dimensional lattice, a perpendicular plane is a drawn at the midpoint of the lines between the lattice points. By using this method the smallest area is enclosed in the way n is called the Wigner Switz primitive cell