“…For a system with a single relaxation time, t, the frequency dependence of the complex magnetic susceptibility, w(o) ¼ w 0 (o)Àiw 00 (o), obeys the Debye equation [13] wðoÞ ¼ w 1 þ wð0Þ À w 1 1 þ iot (15) where w N is the high-frequency susceptibility, w(0) is the static susceptibility, o is the angular frequency and i ¼ OÀ1. As results from Eq.…”