Synthesis, microstructure, and properties of Ge1-xCox diluted magnetic semiconductor films C. B. Jing, W. Wang, T. Lin, C. Y. Cao and J. H. Chu Eur. Phys. J. Appl. Phys., 53 2 (2011) 20304 Published online: 28 January 2011 DOI: 10.1051/epjap/2010100015