Direct evidence of random field effect on magnetic ordering of La(0.5)Gd(0.2)Sr(0.3)MnO(3) manganite system
P. Dey, T. K. Nath, A. Banerjee
Abstract
We report direct experimental evidence of the effect of quenched random field on magnetic ordering of La(0.5)Gd(0.2)Sr(0.3)MnO(3) manganites system. We demonstrate magnetic measurements providing serious evidence to support that quenched random field of Gd divides the system in finite size clusters which undergo cluster-glass like freezing. The size or concentration of these clusters is found to be closely related to the effect of random field, which in turn is a function of applied field.
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