Abstract
Abstract The change in structural behaviour, magnetic measurement & dielectric characteristics of polycrystalline Bi0.80−xLa0.20HoxFeO3 (x = 0.00, 0.05, 0.10 & 0.15 and designated as LH0, LH05, LH10 and LH15 respectively) multiferroics prepared using method of the solid-state reaction, have been investigated. The powder X-ray diffraction and Rietveld refinement of the XRD spectrum indicates that Bi0.80La0.20FeO3 multiferroics have single phase in R3c. Rietveld refined spectrum of the XRD conclude that holmium substitution at A-site for the samples LH05 and LH10 is crystallized as combo of rhombohedral R3c and orthorhombic Pbam space group. Holmium substitution for LH15 has changed the rhombohedral R3c symmetry of Bi0.80La0.20FeO3 to the orthorhombic Pbam symmetry. The magnetic behaviour was studied by recording magnetization with magnetic up to ±10 kOe. Weak ferromagnetic behaviour of all samples attributes that co-doping effectively concealed spiral spin configuration by altering the canting angle. Dielectric behaviour of prepared ceramic compounds was carried by impedance analyser within frequency ranged 100 Hz–7 MHz for different temperatures.
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