Local and global magnetic properties of Zn1-xCoxO, ZnCo2O4 and Mn-doped GaAs thin films - Iwamoto, W. A.; Pagliuso, P. G.; Urbano, R. R.; Rettori, C.; Samanta, K.; Bhattacharya, P.; Katiyar, R.; Da Silva, J. [UNESP]; Pereira, A. [UNESP]; Medeiros, G. A.; Oseroff, S. B. (Institute of Electrical and Electronics Engineers (IEEE), 2006)