Effect of Ti doping on the dielectric, ferroelectric and magnetic properties of Bi0.86La0.08Sm0.14FeO3 ceramics

Gao, Rongli; Qin, Xiaofeng; Wu, Heng; Xu, Ruicheng; Liu, Lun; Wang, Zhenhua; Fu, Chunlin; Cai, Wei; Chen, Gang; Deng, Xiaoling

doi:10.1088/2053-1591/ab3fee

Cited by 11 publications

(12 citation statements)

References 28 publications

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“…So far, Bi 2 O 3 with TiO 2 has been studied for its electronconducting properties, photo-oxidative & sensing capabilities (Chadwick and Francklin, 1993;Gao et al, 2019). Bi 2 O 3 is of high-mobility intrinsic p-type semiconductor that can be used as an electron donor to TiO 2 (Singla and Singh, 2014;Huang et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, doped Bi 2 O 3 exhibits relatively low sintering temperatures with remarkable dielectric properties (Singla et al, 2012;Huang et al, 2017). Oxygen vacancies play an important role to decide the dielectric properties of these systems (Singla et al, 2012;Singla and Singh, 2013;Gao et al, 2019). Many other functional materials such as SrTiO 3 , ZnO, SnO, etc., have been investigated as good candidates for thermoelectric applications (Shi et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Different concentrations of Ti4+ as a donor and electronic properties of Bi2-xTixO3

Alshoaibi

Fayaz²,

Mohsin³

et al. 2023

Front. Mater.

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Bi(2-x)TixO3 (x = 0, 0.01, 0.03. & 0.05) (BO-xT) ceramics are prepared by conventional solid-state route followed by low sintering temperatures. X-ray diffraction analyses show the presence of the monoclinic phase of Bi2O3. The electrical conductivities at room temperature concerning the frequency (ranging from 25 kHz to 5 MHz) and Seebeck Coefficient ranging from 50°C to 400°C were measured. With an increase in Ti (dopant) content, the conductivity and Seebeck Coefficient increased with the temperature increment. The BO-0.03T has the highest Seebeck value (47 μV/°C), which shows a higher carrier concentration. In terms of electrical conductivities, the BO-0.05T ceramic shows the maximum electrical conductivity, i.e. 2.0 × 10−9 μS/m as compared to other samples, which exhibit the presence of free electrons. Moreover, relative permittivity (dielectric constant) and dielectric loss are also measured concerning the frequency at room temperature to investigate the dielectric behaviour of the ceramics. This low-temperature sintering ceramics will open new applications in the domain of electronic materials.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Different concentrations of Ti4+ as a donor and electronic properties of Bi2-xTixO3

Alshoaibi

Fayaz²,

Mohsin³

et al. 2023

Front. Mater.

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“…The existence of multiferroic order in the same material attaches a great potential to it for multifunctional device fabrication apt for applications such as data storage, magnetoelectric sensor devices, multistate memory devices, high-energy density capacitors, etc. (Seidel et al 2010;Coondoo et al 2014;Gao et al 2019;Puhan et al 2019;Spaldin and Ramesh 2019). The coexistence of electric and magnetic fields in the same material and their tendency to mutually control one another bear the major advantage as both fields can be utilized simultaneously in memory device fabrication to store and read information, respectively (Dai et al 2020;Yuan et al 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Since it has remained a difficult task to make single-phase BFO due to its thermal instability, therefore, it is always accompanied with some extra phases. The addition minor phase along with the distorted spiral spin structure of BFO plays a vital role in the optimization of ferroelectric and ferromagnetic properties (Gao et al 2019;Matin et al 2019). Further, some suitable rare-earth ions have been found to enhance the magnetoelectric properties of BFO, when dissolved in the BFO matrix by substituting A-site cation (Bi) in the lattice (Gao et al 2019).…”

Section: Introductionmentioning

confidence: 99%

“…The addition minor phase along with the distorted spiral spin structure of BFO plays a vital role in the optimization of ferroelectric and ferromagnetic properties (Gao et al 2019;Matin et al 2019). Further, some suitable rare-earth ions have been found to enhance the magnetoelectric properties of BFO, when dissolved in the BFO matrix by substituting A-site cation (Bi) in the lattice (Gao et al 2019). When a rare earth ion substitutes the Bi 3+ ion, it is considered to generate chemical pressure into the lattice.…”

Section: Introductionmentioning

confidence: 99%

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Role of La substitution on structural, optical, and multiferroic properties of BiFeO3 nanoparticles

Kumari

Aljawfi

et al. 2021

Appl Nanosci

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The present work reports the influence of Lanthanum (La) substitution on the structural, optical, electrical, and magnetic properties of bismuth ferrite (BiFeO 3 ) nanoparticles (NPs). The compositions of Bi 1−x La x FeO 3 (0% < x < 20%) NPs, with 5% Bi-excess, were synthesized through sol-gel conventional route. The XRD results suggest the formation of rhombohedral perovskite structure (R3c space group) along with a minor secondary phase. The crystallite size calculated from XRD and FESEM was observed to decrease from 60.0 to 40.0 nm with an increase in La content. The bandgap calculated using UV-Vis spectroscopy was found to decrease with La doping, and PL spectroscopy infers formation of defects in La-BFO NPs. The P-E loop studies reveal that La-doped BFO exhibits ferroelectric behavior at room temperature. The various parameters such as spontaneous polarization, dielectric constant, and distribution parameter of relaxation time measured from the electrical investigation were found to increase up to 5% La doping BFO then start decreasing with further increase in the La content in BFO. The impedance spectra of La-BFO was fitted using the theory of Cole-Cole with R(C(R(QR)))(CR) model. It is observed that La-concentration above 5% generates excess space charge which might cross the threshold to start conduction resulting in degrading of multiferroic properties. The DC magnetization study revealed the ferromagnetic behavior of the samples at room temperature. It is observed that La substitution affects the shape of the magnetization hysteresis curve beyond 5% La-concentration, and transforming it to a neck-like formation providing evidence for the spin-canting effect in the samples. These results make La-doped BiFeO 3 NPs a propitious candidate for the multiferroic applications like highdensity data storage devices and supercapacitors.

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Influence of IrO2 addition on magnetoelectric properties of Ni0.5Zn0.5Fe2O4/Ba0.8Sr0.2TiO3 composite ceramics

Gao

Qin

Fan

et al. 2020

J Mater Sci: Mater Electron

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Effect of Ti doping on the dielectric, ferroelectric and magnetic properties of Bi_0.86La_0.08Sm_0.14FeO₃ ceramics

Cited by 11 publications

References 28 publications

Different concentrations of Ti4+ as a donor and electronic properties of Bi2-xTixO3

Different concentrations of Ti4+ as a donor and electronic properties of Bi2-xTixO3

Role of La substitution on structural, optical, and multiferroic properties of BiFeO3 nanoparticles

Influence of IrO2 addition on magnetoelectric properties of Ni0.5Zn0.5Fe2O4/Ba0.8Sr0.2TiO3 composite ceramics

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