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Effect of Dy3+ substitution on structural, magnetic and dielectric properties of BiFeO3-PbTiO3 multiferroics

Kumar, Naveen and Kumar, Sanjeev and Narayan, Bastola and Bansal, Shonak and Singh, Arun K (2019) Effect of Dy3+ substitution on structural, magnetic and dielectric properties of BiFeO3-PbTiO3 multiferroics. In: 2018 IEEE 13TH NANOTECHNOLOGY MATERIALS AND DEVICES CONFERENCE (NMDC), OCT 14-17, 2018, Portland, USA, pp. 17-20.

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Official URL: https://dx.doi.org/10.1109/NMDC.2018.8605908

Abstract

Multiferroic 0.6Bi((1-x))Dy(x)FeO(3)-0.4PbTiO(3) (x = 0, 0.10) nanoparticles were synthesized via sol-gel route. The effect of rare earth Dy3+ ion substitution on structural, magnetic and dielectric properties of BiFeO3-PbTiO3 system has been studied. Rietveld refinement studies of X-ray diffraction profiles reveal that system exhibit cubic (Pm (3) over barm) and tetragonal (P4mm) crystal structure for x = 0 and single cubic (Pm3m) phase for x = 0.10. Experimental results show that Dy3+ doping suppresses the modulated spin cycloid of BiFeO3 results in net remnant magnetization. Dielectric studies show that the conductivity of the sample decreases with Dy3+ ion substitution in the composition, which indicates that Dy3+ doping suppresses the oxygen vacancies.

Item Type: Conference Paper
Additional Information: 13th IEEE Nanotechnology Materials and Devices Conference (NMDC), Portland, OR, OCT 14-17, 2018
Keywords: Sol-gel; BiFeO3-PbTiO3; Magnetic properties; Dielectric properties
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Depositing User: R.S. Ranganayaki
Date Deposited: 05 Jul 2019 06:09
Last Modified: 05 Jul 2019 06:09
URI: http://eprints.iisc.ac.in/id/eprint/62821

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