A Low-Field Temperature Dependent EPR Signal in Terraced MgO:Mn²⁺ Nanoparticles: An Enhanced Zeeman Splitting in the Wide-Bandgap Oxide

Figure 3

EPR of type I MgO nanoparticles measured at different temperatures. (a) the EPR spectra; (c) a magnified region encircled in (a) and (b) replotted (c) with the -factor instead of the field; (d) EPR absorption as the integrated signal from (c). The lines are vertically shifted for better comprehension.

(a)

(b)

(c)

(d)