The characterisation of interaction effects in fine particle systems

Experimental methods and theoretical models that enable interaction effects in particulate systems to be examined are discussed. Two distinct regimes of behavior are considered. The weak interaction case is examined and it is shown that, in general, low-field susceptibility studies can be used to es...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:IEEE transactions on magnetics 1993-11, Vol.29 (6), p.2608-2613
Hauptverfasser: O'Grady, K., El-Hilo, M., Chantrell, R.W.
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Experimental methods and theoretical models that enable interaction effects in particulate systems to be examined are discussed. Two distinct regimes of behavior are considered. The weak interaction case is examined and it is shown that, in general, low-field susceptibility studies can be used to establish the effects of interactions only if care is taken to exclude other effects such as progressive blocking. The strong interaction regime is considered, and the use of remanence curves, chi /sub irr/ curves and the delta I(H) plot in the study of interaction effects is described. For both regimes, the use of numerical models in this area is reviewed.< >
ISSN:0018-9464
1941-0069
DOI:10.1109/20.280850