Dielectric and magnetic properties of Ba-, La- and Pb-doped Bi0.8Gd0.1M0.1Fe0.9Ti0.1O3 perovskite ceramics

O 3 (BCTMNZ) ceramics were fabricated by using a conventional solid-state reaction method. The doping effects of La and Gd on the structural and magnetic properties were studied. The structural pattern of the ceramic samples were investigated by X-ray diffraction and the results indicated that both samples shows an orthorhombic structure with pure phase. Strain and crystalline size values for Gd and La doped were 0.31-0.33% and 0:154-0:181 m, respectively. The room temperature hysteresis loops were obtained by using a vibrating sample magnetometer. La doped ceramic showed the higher value of magnetization i.e., 0:369 B/f.u. as compared to Gd doped BLTMNZ ceramics.

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Dielectric relaxation and scaling of AC conductivity observed in mixed valence perovskite Eu₂CoMnO₆

Masud¹,

Chaudhuri

2021

J. Adv. Dielect.

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Monophasic and polycrystalline double perovskite Eu2CoMnO6 has been synthesized, and its structural characterization, frequency and temperature-dependent dielectric relaxation have been studied. Observed thermally activated dielectric relaxation was explained using the empirical Havriliak–Negami (HN) dielectric relaxation function with an estimated activation energy [Formula: see text] [Formula: see text] 0.22 eV and attempt frequency [Formula: see text] [Formula: see text] 2.46 × 109 Hz. The frequency-dependent AC conductivity data, over a wide range of temperature (100–325 K), followed the empirical universal power law behavior ([Formula: see text][Formula: see text] [Formula: see text], [Formula: see text] is the constant exponent) showing two different frequency exponents, respectively, in the high- and low-temperature regions. The high-temperature ([Formula: see text]275 K) conductivity data followed the continuous time random walk (CTRW) approximation model proposed by Dyre. However, this model failed to reproduce the observed conductivity spectra in the low-temperature side ([Formula: see text]200 K). Interestingly, both the high- and low-temperatures’ conductivity data can be scaled to the master curve with suitably chosen scaling parameters.

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Dielectric and magnetic properties of Ba-, La- and Pb-doped Bi_0.8Gd_0.1M_0.1Fe_0.9Ti_0.1O₃ perovskite ceramics

Cited by 3 publications

References 33 publications

Optical coalition in the electrical and magnetic induction of Dy and Tb-doped BFO-based multiferroic

Optical coalition in the electrical and magnetic induction of Dy and Tb-doped BFO-based multiferroic

Study the structural and magnetic properties of rare-earth ions (La and Gd) doped Ba_0.9575Ca_0.0025Ti_0.80685Mn_0.002475Nb_0.002475Zr_0.1782O₃ (BCTMNZ) ceramics

Dielectric relaxation and scaling of AC conductivity observed in mixed valence perovskite Eu₂CoMnO₆

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Dielectric and magnetic properties of Ba-, La- and Pb-doped Bi0.8Gd0.1M0.1Fe0.9Ti0.1O3 perovskite ceramics

Cited by 3 publications

References 33 publications

Optical coalition in the electrical and magnetic induction of Dy and Tb-doped BFO-based multiferroic

Optical coalition in the electrical and magnetic induction of Dy and Tb-doped BFO-based multiferroic

Study the structural and magnetic properties of rare-earth ions (La and Gd) doped Ba0.9575Ca0.0025Ti0.80685Mn0.002475Nb0.002475Zr0.1782O3 (BCTMNZ) ceramics

Dielectric relaxation and scaling of AC conductivity observed in mixed valence perovskite Eu2CoMnO6

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Product

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Dielectric and magnetic properties of Ba-, La- and Pb-doped Bi_0.8Gd_0.1M_0.1Fe_0.9Ti_0.1O₃ perovskite ceramics

Study the structural and magnetic properties of rare-earth ions (La and Gd) doped Ba_0.9575Ca_0.0025Ti_0.80685Mn_0.002475Nb_0.002475Zr_0.1782O₃ (BCTMNZ) ceramics

Dielectric relaxation and scaling of AC conductivity observed in mixed valence perovskite Eu₂CoMnO₆