Complex dielectric function, Cole-Cole, and optical properties evaluation in BiMnO3 thin-films by Valence Electron Energy Loss Spectrometry (VEELS) analysis

Umoh, G.V.; Leal-Pérez, J.E.; Olive, Sion; González‐Hernández, J.; Mercader-Trejo, Flora; Herrera-Basurto, R.; Auciello, O.; Hurtado-Macías, Abel

doi:10.1016/j.ceramint.2022.04.212

Cited by 7 publications

(3 citation statements)

References 34 publications

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“…Figure 4 shows the XRD pattern of a thin film synthesized at 873 ± 5 K and annealed at 973 K for 7 h. The diffraction peaks were indexed based on monoclinic-type C2, space group number 5 with crystallographic parameters; a: 9.5323 Å, b : 5.6064 Å, c : 9.8536 Å agree to reference code: (PDF: 1-089-4544). All the peaks are associated with pure BiMnO 3 , as was previously reported [18].…”

Section: Resultssupporting

confidence: 81%

“…No. 5) [18]. The factor group analysis of all phonons with Γ point in Brillouin-zone center predicts the following:…”

Section: Resultsmentioning

confidence: 99%

“…As previously reported, with details elsewhere [18], BiMnO 3 thin films were obtained via radio-frequency magnetron sputtering. Nb-doped SrTiO 3 (100) single crystal was used as the substrate for the growth of BiMnO 3 thin film, due to its smaller lattice mismatched with BiMnO 3 .…”

Section: Methodsmentioning

confidence: 99%

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Nanomechanical-ferroelastics behavior, and the low-temperature ferroelectric manifestation of BiMnO₃ thin films

Umoh,

Gómez-Ovalle,

Cruz

et al. 2024

Phys. Scr.

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Ferroelastic-nanomechanical behavior of BiMnO3 thin films on (100) Nb-doped SrTiO3 substrate is studied at the nanoscale, for the first time using the theories of depth sensing indentation and finite element analysis. This was to understand the redirection of polarization in ferroelastic behavior using piezoelectric direct effect and applying a controlled local force by nanoindentation. The values of the nanomechanical properties Young’s modulus (E), hardness (H), and Stiffness (S) were measured to be E =142 ± 3 GPa, H= 8 ± 0.2 GPa, and S= 44072 ± 45 N/m respectively. Using the experimental mechanical properties, a finite element analysis was carried out to understand the relationship between the irreversible work vs. depth curve and plastic-deformation evolution of the thin film-interface-substrate system, associated with the pop-in observed. von Mises stress maps are presented to clearly illustrate the deformations, mechanical failures, and influences between the BiMnO3 film and the SrTiO3 Substrate. The ferroelastic range for BiMnO3 material was observed between 0 to 12 nm, and the yield strength was Y=2.6 ± 0.7 GPa. The ferroelectric properties through hysteresis curves were evaluated at two different temperatures of 200 K and 300 K in order to observe the effect of polarization with temperature. Providing better polarization performance at lower temperatures; Ps = 9.14 ±0.01 (μC/cm2), Pr = 2.23 ±0.02 (μC/cm2) and Hc = 0.77 kV/cm.

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Section: Resultssupporting

confidence: 81%

“…No. 5) [18]. The factor group analysis of all phonons with Γ point in Brillouin-zone center predicts the following:…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Nanomechanical-ferroelastics behavior, and the low-temperature ferroelectric manifestation of BiMnO₃ thin films

Umoh,

Gómez-Ovalle,

Cruz

et al. 2024

Phys. Scr.

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Investigation of structure, morphology, dielectric, and optoelectronic properties of La-doped BaZrO3: experimental and DFT analysis

Ayyaz,

Murtaza,

Alkhaldi

et al. 2024

J Mater Sci: Mater Electron

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Optoelectronic Properties and Complex Dielectric Function in Multiferroics BiFeO3 Nano-Rods: Evaluation by Valence-EELS Analysis.

Leal-Perez,

Jarquín-Rodríguez,

Herrera-Basurto

et al. 2024

Journal of Alloys and Compounds

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Complex dielectric function, Cole-Cole, and optical properties evaluation in BiMnO3 thin-films by Valence Electron Energy Loss Spectrometry (VEELS) analysis

Cited by 7 publications

References 34 publications

Nanomechanical-ferroelastics behavior, and the low-temperature ferroelectric manifestation of BiMnO₃ thin films

Nanomechanical-ferroelastics behavior, and the low-temperature ferroelectric manifestation of BiMnO₃ thin films

Investigation of structure, morphology, dielectric, and optoelectronic properties of La-doped BaZrO3: experimental and DFT analysis

Optoelectronic Properties and Complex Dielectric Function in Multiferroics BiFeO3 Nano-Rods: Evaluation by Valence-EELS Analysis.

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Complex dielectric function, Cole-Cole, and optical properties evaluation in BiMnO3 thin-films by Valence Electron Energy Loss Spectrometry (VEELS) analysis

Cited by 7 publications

References 34 publications

Nanomechanical-ferroelastics behavior, and the low-temperature ferroelectric manifestation of BiMnO3 thin films

Nanomechanical-ferroelastics behavior, and the low-temperature ferroelectric manifestation of BiMnO3 thin films

Investigation of structure, morphology, dielectric, and optoelectronic properties of La-doped BaZrO3: experimental and DFT analysis

Optoelectronic Properties and Complex Dielectric Function in Multiferroics BiFeO3 Nano-Rods: Evaluation by Valence-EELS Analysis.

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Nanomechanical-ferroelastics behavior, and the low-temperature ferroelectric manifestation of BiMnO₃ thin films

Nanomechanical-ferroelastics behavior, and the low-temperature ferroelectric manifestation of BiMnO₃ thin films