Spectroscopic investigations and magnetic measurements on iron-containing barium titanate glass-ceramics

Harizanova, Ruzha; Avramova, I.; Cherkezova‐Zheleva, Zara; Paneva, Daniela; Kukeva, Rositsa; Stoyanova, Radostina; Gugov, Ivailo; Mihailova, Irena; Tzankov, D.; Georgieva, M.; Avdeev, G.; Bocker, Christian; Rüssel, Christian

doi:10.1016/j.jnoncrysol.2020.120273

Cited by 3 publications

(3 citation statements)

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“…Figure 8b displays the Ba 3d XPS spectrum of the present transparent composite sample, revealing two peaks of 3d 5/2 and 3d 3/2 at 780.58 and 795.88 eV, respectively. This spectrum closely resembles that reported by Harizanova et al for strontium barium titanate glassceramics [34]. The peak at a binding energy of 780.58 eV, corresponding to 3d 5/2 is attributed to Ba 2+ ions within the BaTiO 3 lattice [35].…”

Section: Ftir and Xps Studiessupporting

confidence: 89%

“…Additionally, the peaks at binding energies of 464.69 and 472.63 eV also correspond to 2p 3/2 and 2p 1/2 respectively. The peaks at higher binding energies are attributed to the existence of Ti 4+ ions, while those at lower binding energies may be attributed to the presence of Ti 3+ ions [34]. The O 1s XPS spectrum of the present transparent composite sample is shown in Fig.…”

Section: Ftir and Xps Studiesmentioning

confidence: 84%

“…8c. This spectrum reveals four individua peaks of 2p3/2 and 2p1/2, indicating the presence of different oxidation states of Ti ions [34]. The peaks at binding energies of 459.01 and 461.63 eV correspond to 2p 3/2 and 2p 1/2 respectively.…”

Section: Ftir and Xps Studiesmentioning

confidence: 95%

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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: Ftir and Xps Studiessupporting

confidence: 89%

Section: Ftir and Xps Studiesmentioning

confidence: 84%