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<p>The perovskite ceramic compound Bi<sub>0.6</sub>La<sub>0.4</sub>TiO<sub>3</sub> has been synthesized using the conventional solid-state reaction method. The sample crystallizes to a tetragonal crystal structure belonging to the I4/mmm space group. It is evidenced from XRD and Raman spectrum analysis that there is significant structural hampering due to the La/Bi-O bonds influencing Ti-O bonds. Magnetization measurements exhibit paramagnetic-like behavior throughout the measured temperature range without any phase transition as a result of inhomogeneities present, which leads to deviation in the Curie-Weiss (CW) behavior. The dielectric peak at 150&#xa0;K is attributed to non-Debye-type dielectric relaxation, and the peak at 205&#xa0;K, attributed to Maxwell-Wagner-type relaxation, suggests the coexistence of dielectric behavior along with weak magnetism. The smeared plateau around 255&#xa0;K is due to the enhanced leakage currents occurring across grain boundaries. The frequency dependence of AC conductivity measured at different temperatures indicates that the conduction process is thermally activated. Also, the AC conductivity is found to obey the correlated barrier hopping (CBH) model and the non-overlapping small polaron tunnelling (NSPT) model, respectively, at low and high temperature regions.</p>

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Investigation of elastic, weak magnetic and transport properties in Bi0.6La0.4TiO3 ceramic oxide

  • 期刊论文

  • 发表日期：

    2025年8月22日

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  • V. Punith Kumar

摘要

The perovskite ceramic compound Bi0.6La0.4TiO3 has been synthesized using the conventional solid-state reaction method. The sample crystallizes to a tetragonal crystal structure belonging to the I4/mmm space group. It is evidenced from XRD and Raman spectrum analysis that there is significant structural hampering due to the La/Bi-O bonds influencing Ti-O bonds. Magnetization measurements exhibit paramagnetic-like behavior throughout the measured temperature range without any phase transition as a result of inhomogeneities present, which leads to deviation in the Curie-Weiss (CW) behavior. The dielectric peak at 150 K is attributed to non-Debye-type dielectric relaxation, and the peak at 205 K, attributed to Maxwell-Wagner-type relaxation, suggests the coexistence of dielectric behavior along with weak magnetism. The smeared plateau around 255 K is due to the enhanced leakage currents occurring across grain boundaries. The frequency dependence of AC conductivity measured at different temperatures indicates that the conduction process is thermally activated. Also, the AC conductivity is found to obey the correlated barrier hopping (CBH) model and the non-overlapping small polaron tunnelling (NSPT) model, respectively, at low and high temperature regions.