1 Department of Physics, Technical University of Denmark2 Uppsala University3 Department of Micro- and Nanotechnology, Technical University of Denmark
Nonequilibrium dynamics in an interacting Fe-C nanoparticle sample, exhibiting a low-temperature spin-glass-like phase, has been studied by low-frequency ac susceptibility and magnetic relaxation experiments. The nonequilibrium behavior shows characteristic spin-glass features, but some qualitative differences exist. The nature of these differences is discussed.
Physical Review B (condensed Matter and Materials Physics), 2000, Vol 61, Issue 2, p. 1261-1266