Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a) Schematic of the energy barrier (EB) required for the magnetic moment to flip between their easy axis (b) Illustration of particles in a (i) quasi-stable blocked state with a fixed coercivity behaving in a pseudo-ferromagnetic state and (ii) an unblocked freely rotating state, where the magnetic coercivity is rotating randomly making the net magnetic moment to be zero. Adapted from (Pankhurst et al., 2003).
