Defect induced room temperature ferromagnetism in high quality Co-doped ZnO bulk samples

1. de Godoy, M.P.F.
2. Gratens, X.
3. Chitta, V.A.
4. Mesquita, A.
5. de Lima, M.M.
6. Cantarero, A.
7. Rahman, G.
8. Morbec, J.M.
9. de Carvalho, H.B.