Enhancement of dielectric and ferroelectric properties by Ca doping BaTiO3

Sahoo, Sophia; Yadav, Satish; Chandra, Mohit; Singh, Kiran

doi:10.1063/1.5112859

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…The temperature dependent (90 to 370 K) dielectric measurements are performed at different frequencies during cooling and warming (1 K min −1 ) using home-made insert coupled with Keysight LCR meter model E4980A and Lakeshore temperature controller [39]. The temperature dependent P-E loops measurements has been carried out using radiant technology precision multiferroic P-E loop tracer with home-made attachment for temperature variation [40]. The pyroelectric measurement is performed using Keithley electrometer 6517B.…”

Section: Methodsmentioning

confidence: 99%

Structural correlations in the enhancement of ferroelectric property of Sr doped BaTiO₃

Yadav

Chandra

Rawat

et al. 2020

J. Phys.: Condens. Matter

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The effect of Sr doping in BaTiO 3 (BTO) with nominal compositions Ba 0.80 Sr 0.20 TiO 3 (BSTO) have been explored in its structural, lattice vibration, dielectric, ferroelectric and electrocaloric properties. The temperature dependent dielectric results elucidate the enhancement in dielectric constant and exhibit three frequency independent transitions around 335, 250 and 185 K which are related to different structural transitions. All these transitions occur at lower temperature as compared with pristine BTO, however; remnant electric polarization (P) of BSTO is much higher than in BTO. The value of P is  5C/cm 2 at room temperature and the maximum P 8C/cm 2 is observed at tetragonal to orthorhombic and orthorhombic to rhombohedral transitions. The electro-caloric effect shows the maximum adiabatic change in temperature T 0.24 K at cubic to tetragonal transition. The temperature dependent synchrotron X-ray diffraction and Raman results shows correlations between P, crystal structure and lattice vibrations. Our results demonstrate the enhancement in ferroelectric properties of BTO with Sr doping. The origin of the enhancement in ferroelectric property is also discussed which is related to the appearance of superlattice peak around room temperature due to TiO 6 octahedral distortion. These enhanced properties would be useful to design lead free high quality ferroelectric and piezoelectric materials.

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Section: Methodsmentioning

confidence: 99%

Structural correlations in the enhancement of ferroelectric property of Sr doped BaTiO₃

Yadav

Chandra

Rawat

et al. 2020

J. Phys.: Condens. Matter

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X-ray peak broadening analysis and dielectric studies of BCT ceramics; comparison of sol–gel and solid solution methods

Zak

Hashim

2023

J Mater Sci: Mater Electron

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Structural and dielectric property of Ba0.80Ca0.20TiO3

Deshmukh,

Upreti,

Sangeeta

et al. 2023

The Fourth Scientific Conference for Electrical Engineering Techniques Research (Eetr2022)

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Enhancement of dielectric and ferroelectric properties by Ca doping BaTiO3

Cited by 3 publications

References 4 publications

Structural correlations in the enhancement of ferroelectric property of Sr doped BaTiO₃

Structural correlations in the enhancement of ferroelectric property of Sr doped BaTiO₃

X-ray peak broadening analysis and dielectric studies of BCT ceramics; comparison of sol–gel and solid solution methods

Structural and dielectric property of Ba0.80Ca0.20TiO3

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Enhancement of dielectric and ferroelectric properties by Ca doping BaTiO3

Cited by 3 publications

References 4 publications

Structural correlations in the enhancement of ferroelectric property of Sr doped BaTiO3

Structural correlations in the enhancement of ferroelectric property of Sr doped BaTiO3

X-ray peak broadening analysis and dielectric studies of BCT ceramics; comparison of sol–gel and solid solution methods

Structural and dielectric property of Ba0.80Ca0.20TiO3

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Product

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Structural correlations in the enhancement of ferroelectric property of Sr doped BaTiO₃

Structural correlations in the enhancement of ferroelectric property of Sr doped BaTiO₃