Investigation of optoelectronic properties of pure and Co substituted
α
-Al
2
O
3
by Hubbard and modified Becke–Johnson exchange potentials
Rahnamaye Aliabad H. A.†
Total densities of states for (a) α -Al
2
O
3
and (b) α -Al
1.833
Co
0.167
O
3
obtained by GGA and mBJ.