Figure 6
From: Physical Justification for Negative Remanent Magnetization in Homogeneous Nanoparticles
Magnetic aftereffect measurements.
(a) Magnetic aftereffect measured for 24 hours at 2 K for various holding fields in the vicinity of HCd. An analytical time window (ATW) from ~300 s to 24 hr, i.e. ln(t) from 6 to 11.4, were used in the measurements. Note: The first ~300 s were not included in the ATW to guarantee highly stable temperature and field values. In the selected ATW, the decay curves were observed to be quasi-linear and their slopes were used to determine the decay coefficient. (b) Comparison of magnetic aftereffect measured at 2 K, 10 K and 30 K for the holding fields of their respective HCd, −75 Oe, 14 Oe and 0 Oe, within the selected ATW.
