Figure 4From: Ferromagnetic ordering in Mn-doped ZnO nanoparticlesESR spectra of Zn1 - xMn x O with different doping concentrations. (a) ESR spectra of 1, 5 and 9 at% Mn-doped ZnO nanoparticles taken at 300 K. Temperature dependence of ESR spectra of (b) 1 at%, (c) 5 at% and (d) 9 at% Mn-doped ZnO.Back to article page