Influence of Fe substitution on structural and magnetic features of BiMn2O5 nanostructures

Gaikwad, Vishwajit M.; Goyal, Saveena; Yanda, Premakumar; Sundaresan, A.; Chakraverty, S.; Ganguli, Ashok K.

doi:10.1016/j.jmmm.2017.11.101

Cited by 12 publications

(2 citation statements)

References 58 publications

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“…The self-composite BM was an electrically non-polar compound, which exhibited antiferromagnetic order in a low-temperature range with T Néel ≈ 39 K [38]. In accordance with the literature, the BiMn 2 O 5 phase exhibited E gap = 1.24 eV for thin films [39], and E gap =1.61 eV, for nano-grain material [40]. The E gap = 0.78 eV [41] and E gap = 1.23 eV [42] was calculated dependably on the modeling method.…”

Section: Introductionsupporting

confidence: 53%

Vis and NIR Diffuse Reflectance Study in Disordered Bismuth Manganate—Lead Titanate Ceramics

Molak

Szeremeta

Koperski

2022

Electronic Materials

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This work shows a correlation between light reflectance, absorption, and morphologies of series of bismuth manganate–lead titanate, (1 − x) BM–x PT, (x = 0.00, 0.02, 0.04, 0.08, 0.12, 0.16, 0.24, 1.00) ceramics composite. Low reflectance in the Vis-NIR range corresponds to ‘black mirror’ features. The modified Kubelka-Munk function applied to measured visible-near infrared (Vis-NIR) diffuse reflectance enabled the estimation of the energy gaps magnitude of the order of 1.0–1.2 eV for BM-PT. Histograms of grains, obtained using a scanning electron microscope, enabled finding the correlation between grains size, reflectance magnitude, and PT content. The magnitude of energy gaps was attributed to electronic structure bands modified by crystal lattice disorder and oxygen vacancies.

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Section: Introductionsupporting

confidence: 53%

Vis and NIR Diffuse Reflectance Study in Disordered Bismuth Manganate—Lead Titanate Ceramics

Molak

Szeremeta

Koperski

2022

Electronic Materials

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“…19,20 BMO has also been reported for several applications like supercapacitors, 21 development of photoanode for hydrogen evolution reactions, 22 etc. Although previous reports have discussed the magnetodielectric properties of BMO, only few works have reported the substitution of cations like Fe, 19,23,24 Ce, 25 Eu, 26 Nd, 27 Ti, 28 Gd, 20 etc. It is known that owing to the volatile nature of Bi, many of the Bismuth compounds have Bi ion deficiency while synthesis with stoichiometric ratio and always excess Bi have rationally been used to adjust the loss during synthesis of materials or during the growth of single crystals.…”

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confidence: 99%

Ice Bath Assisted BiMn₂O₅(Mullite) Phase Synthesis, Structural and Compositional Analysis under Different Bi Concentration

Annamalai

Radha

Кичанов

et al. 2021

ECS J. Solid State Sci. Technol.

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In this work, ice bath assisted co-precipitation synthesis of nanostructured Bismuth Manganite (BiMn2O5) with varied bismuth concentration and their consequences on the structural properties have rationally been investigated for first time in reports. The novelty of this study is to primarily elucidate the crystalline phase formations and related structural as well as compositional changes while fabricating BiMn2O5 with different amount of Bi content up to 20% to compensate the volatile Bi during annealing process. Powder X-ray diffraction and Rietveld Refinement techniques evidently confirmed the formation of single-phase mullite-type orthorhombic perovskite structure for stoichiometric ratio; while increasing Bi content, a secondary phase sillenite (Bi24Mn2O40) was formed which also gradually increased with increase in bismuth in the precursor solution. Rod and cubic shaped morphologies were commonly observed and size of the particles shows particle size ranging between 45 nm and 120 nm with increase of bismuth content. The mixed morphology is inevitably due to the presence of the secondary phases due to increasing Bi content that are evident from the XRD results. Raman and Optical properties evidently confirmed the structural variation and changes in the band gap respectively owing to the increase in secondary phase evolution with excess bismuth content. X-ray photoelectron spectroscopy (XPS) studies confirmed the increment in Bi content and the coexistence of Mullite and Sillenite phases in the samples.

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The practical doping principles of tuning antiferromagnetic state in BiMn2O5 ceramics

Bao

et al. 2023

Appl. Phys. A

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Influence of Fe substitution on structural and magnetic features of BiMn2O5 nanostructures

Cited by 12 publications

References 58 publications

Vis and NIR Diffuse Reflectance Study in Disordered Bismuth Manganate—Lead Titanate Ceramics

Vis and NIR Diffuse Reflectance Study in Disordered Bismuth Manganate—Lead Titanate Ceramics

Ice Bath Assisted BiMn₂O₅(Mullite) Phase Synthesis, Structural and Compositional Analysis under Different Bi Concentration

The practical doping principles of tuning antiferromagnetic state in BiMn2O5 ceramics

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Influence of Fe substitution on structural and magnetic features of BiMn2O5 nanostructures

Cited by 12 publications

References 58 publications

Vis and NIR Diffuse Reflectance Study in Disordered Bismuth Manganate—Lead Titanate Ceramics

Vis and NIR Diffuse Reflectance Study in Disordered Bismuth Manganate—Lead Titanate Ceramics

Ice Bath Assisted BiMn2O5(Mullite) Phase Synthesis, Structural and Compositional Analysis under Different Bi Concentration

The practical doping principles of tuning antiferromagnetic state in BiMn2O5 ceramics

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Ice Bath Assisted BiMn₂O₅(Mullite) Phase Synthesis, Structural and Compositional Analysis under Different Bi Concentration