According to a given cage structure, a special crystalline
lattice constant a = sqrt (19) A, consisting of corner atoms (black
atoms) and volume atoms (red atoms) located on the volume diagonals
within the 1/4 distance from the edges and corners
a) Calculate the volumetric density of the crystal,
b) Find the surface density of the 100 by showing the atoms in the
plane of the crystal (100).
c) Find the surface density of the 110 by showing the atoms in the
plane of the crystal (110).
d) Find the surface density of the 111 by showing the atoms in the
plane of the crystal (111).
av3
av3
av3
av3
av3 4
3
av3 4
av3 4