Ultrafast electron spin dynamics in ZnO and Zn1-xCoxO sol-gel thin films M. Raskin, K. Whitaker, G. Kiliani, K. Beha, S. T. Ochsenbein, N. Janßen, T. Stiehm, M. Fonin, U. Rüdiger, A. Leitenstorfer et al. (2 more) EPJ Web of Conferences, 41 (2013) 03015 Published online: 13 March 2013 DOI: 10.1051/epjconf/20134103015