Fragility of the spin-glass-like collective state to a magnetic field in an interacting Fe-C nanoparticle system - art. no. 212402

Authors
Jonsson, PE Felton, S Svedlindh, P Nordblad, P Hansen, MF
Citation
Pe. Jonsson et al., Fragility of the spin-glass-like collective state to a magnetic field in an interacting Fe-C nanoparticle system - art. no. 212402, PHYS REV B, 6421(21), 2001, pp. 2402
Citations number
27
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
6421
Issue
21
Year of publication
2001
Database
ISI
SICI code
0163-1829(200112)6421:21<2402:FOTSCS>2.0.ZU;2-Z
Abstract
The effect of applied magnetic fields on the collective nonequilibrium dyna mics of a strongly interacting Fe-C nanoparticle system has been investigat ed. It is experimentally shown that the magnetic aging diminishes to finall y disappear for fields of moderate strength. The field needed to remove the observable aging behavior increases with decreasing temperature. The same qualitative behavior is observed in an amorphous metallic spin glass (Fe0.1 5Ni0.85)(75)P16B6Al3.