Dielectric and ferroelectric properties of Al2O3 containing lead titanate based glass-ceramics

Rahangdale, V. U.; Gala, D. K.; Acharya, R. M.; Deshpande, V.K.

doi:10.1063/1.4872726

Cited by 2 publications

(1 citation statement)

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“…14 a and b The plot of (α hν) 1/2 versus hν and the plot of ln α versus hν of the present transparent composite sample, respectively Fig. 15 The polarization versus electric field (P-E) of the present transparent composite sample at various electric field attributed to three reasons: the electrical nonpolling of the glassy phase, the interface between the crystal (BaTiO 3 ) and glass, and the stresses applied on BaTiO 3 nanoparticles by the surrounding rigid glass matrix [55,56]. Parameters of the P-E loops for the present transparent composite sample at various electric field are listed in Table1.…”

Section: Optical and Ferroelectric Studiesmentioning

confidence: 93%

Double hysteresis (P-E) loops in the transparent composite containing BaTiO3 at room temperature

Abdel-Khalek,

Mohamed,

Ismail

2024

Appl. Phys. A

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A transparent composite sample containing BaTiO3 was synthesized by using the melting quenching method. The presence of a glassy phase in this composite sample was detected through XRD analysis, and this was further confirmed by DSC study. TEM and SAED analyses provided evidence that the BaTiO3 nanoparticles/clusters are embedded within the borate glass matrix, establishing the composite nature of this sample. FTIR spectrum of the present sample revealed that the glass matrix is composed of two structural groups (BO3 with NBO’s, and BO4), along with the distinct groups for BaTiO3. XPS spectra of the present composite sample indicated the presence of more than one type of boron, barium, titanium and oxygen. DSC and dielectric studies of the present composite sample revealed the presence of the phase transition temperature (Tc). Dielectric constant (ɛr) and dielectric loss (tan δ) curves of the present composite sample displayed an anomaly peak in the vicinity of TC. The optical transmission spectrum of the present composite sample exhibit two transmission bands of Ti3+ (3d1) ions in tetragonal distorted sites. At room temperature, the present transparent composite sample exhibited double hysteresis loops for BaTiO3 at low electric fields. The results obtained can be used for the development of lead-free ferroelectric material.

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Section: Optical and Ferroelectric Studiesmentioning

confidence: 93%