Volume Density Flashcards
1
Q
Volume Density of atoms in a Simple Cube Structure
A
1/8 sphere
(1/8 atom * 8)/(Volume of cube)
(1 atom)/(a^3) where a is the lattice constant
2
Q
Volume density units
A
1/cm^3
3
Q
Volume Density of Atoms in a Body Centered Cubic (BCC)
A
2/a^3
4
Q
Volume Density of Atoms in a Face Centered Cubic (FCC)
A
((1/8 * 8) + (1/2 * 6))/a^3
4/a^3
4 atoms per unit cell
5
Q
Volume Density of Atoms in a Diamond Crystal Structure
A
((1/8 * 8) + (1/2 * 6) + 4)/a^3
8/a^3
Si, Ge
6
Q
GaAs
A
In the unit cell, there will be 4 Ga atoms and 4 As atoms
Zincblende crystal lattice
7
Q
Volume density of Ga atoms in GaAs
A
4/a^3
8
Q
Volume density of As atoms in GaAs
A
4/a^3
9
Q
Density
A
N*m (g/cm^3)
