Static Scaling on an Interacting Magnetic Nanoparticle System

Static Scaling on an Interacting Magnetic Nanoparticle System

Comment on "memory effects in an interacting magnetic nanoparticle system".

We have performed a series of measurements to study the low temperature dynamics of an interacting magnetic nanoparticle system. The results obtained demonstrate striking memory effects in the dc magnetization and magnetic relaxation that support the existence of a spin-glass-like phase in interacting magnetic nanoparticles. Moreover, we observe an asymmetric response with respect to temperatur...

Critical dynamics of an interacting magnetic nanoparticle system

Critical dynamics of an interacting magnetic nanoparticle system 2 Abstract. Effects of dipole-dipole interactions on the magnetic relaxation have been investigated for three Fe-C nanoparticle samples with volume concentrations of 0.06, 5 and 17 vol%. While both the 5 and 17 vol% samples exhibit collective behavior due to dipolar interactions, only the 17 vol% sample displays critical behavior ...

Nonequilibrium dynamics in an interacting Fe - C nanoparticle system

Fragility of the spin-glass-like collective state to a magnetic field in an interacting Fe- C nanoparticle system