Relaxation of Co3O4 NPs

Non-equilibrium effects in the magnetic behavior of Co3O4 nanoparticles.
Vijay Bisht, K.P. Rajeev
Solid State Comm. 151, 1275 (2011)

Aging experiments in the ZFC protocol at 20 K with waiting times 30, 300, and 3000 s. The inset shows the corresponding experiments in the FC protocol.