[Wien] U & J values for Cobalt

[Dr. Sharat Chandra]

Dear Users

Can someone please point me to some reference which gives the U and J 
values for Co? I want to do the LDA+U calculation for GaN with Co 
substituting at the Ga site using a supercell.

Also, if I get the U and J values for Co in some other configuration, can 
those values be used for my calculations?

Regards and thanks in advance
Sharat Chandra