Origin of the cluster-glass-like magnetic properties of the ferromagnetic system
Authors: Kumar P.S.A.1; Joy P.A.2; Date S.K.2
Source: Journal of Physics: Condensed Matter, Volume 10, Number 29, 1998 , pp. L487-L493(1)
Publisher: Institute of Physics Publishing
Abstract:
The magnetic behaviour of at low magnetic fields has been studied by ac susceptibility, and field cooled (FC) and zero field cooled (ZFC) magnetization measurements. The cluster-glass-like magnetic behaviour of the compound is found to originate from its magnetocrystalline anisotropy as similar properties are observed for ferromagnetic systems also. The cluster glass freezing temperature and its magnetic field dependence, the irreversibility between the FC and ZFC magnetization curves, the shape of the low-field susceptibility curves, etc are related to the magnitude and temperature variation of the coercivity which is a measure of the anisotropy, and the ratio where is the applied magnetic field.
Language: English
Document Type: Miscellaneous
Affiliations: 1: Centre for Advanced Studies in Materials Science and Solid State Physics, Department of Physics, University of Pune, Pune 411007, India 2: Physical and Materials Chemistry Division, National Chemical Laboratory, Pune 411008, India

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