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Effect of Tb, Ti co-doping on the electrical and magnetic properties of (Bi, La)FeO3 multiferroic ceramics

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Abstract

Polycrystalline samples of Bi0.6Tb0.1La0.3Fe0.7Ti0.3O3 hereby designated as (BTbLFT) was prepared by using a solid state reaction technique and their structural, magnetic, and electric property were investigated. X-ray diffraction analysis indicated that all the samples maintained original R3c space group. The XRD patterns of the samples at room temperature showed perovskite phase with hexagonal structure at room temperature. The plots of Z″ and M″ versus frequency at various temperatures show peaks in the higher temperature range (250–390 °C). The compounds show dielectric relaxation, which is found to be of non-Debye type and the relaxation frequency shifted to higher side with increase in temperature. The Nyquist plot and conductivity studies showed the NTCR character of samples. M–H hysteresis loop of BTbLFT samples at an applied field of 1 T exhibited spontaneous magnetization of 1.735 emu/g. By using VSM technique, a significant change in the magnetic properties was observed for this ceramic and highest magnetic moment were found at temperature 5 K.

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Authors and Affiliations

  1. Ferroelectric Research Laboratory, Department of Physics, A N College, Patna, 800013, India

    Seema Sharma

  2. School of Physics, Shoolini University, Solan, HP, India

    Mamta Shandilya & Radheshyam Rai

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  1. Seema Sharma
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  2. Mamta Shandilya
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  3. Radheshyam Rai
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Correspondence to Radheshyam Rai.

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Sharma, S., Shandilya, M. & Rai, R. Effect of Tb, Ti co-doping on the electrical and magnetic properties of (Bi, La)FeO3 multiferroic ceramics. J Mater Sci: Mater Electron 26, 9484–9494 (2015). https://doi.org/10.1007/s10854-015-3450-0

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  • DOI: https://doi.org/10.1007/s10854-015-3450-0

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