Multiferroic bismuth manganite prepared by mechanochemical synthesis

Branković, Zorica; Stanojević, Zorica Marinković; Mančić, Lidija; Vukotic, V.; Bernik, Slavko; Branković, Goran

doi:10.1016/j.jeurceramsoc.2009.06.030

Cited by 22 publications

(12 citation statements)

References 13 publications

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“…This favorably compares with the results reported in ref. 32 increased by about twice when the milling time was increased from 4 to 12 hours. However, longer reaction times were not tried.…”

Section: Discussionmentioning

confidence: 98%

“…[29][30][31] A first attempt to obtain BiMnO 3 by a mechanochemical route was carried out by Brankovic and coworkers and reported in two consecutive works. 32,33 These authors announced the mechanosynthesis of BiMnO 3 at ambient pressure and room temperature. However, they admitted the contamination of the samples with iron, coming from the reaction media, 32 or the existence of important amounts of unidentified amorphous phases, together with unreacted Mn 2 O 3 .…”

Section: Introductionmentioning

confidence: 99%

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Nanostructured BiMnO3+δ obtained at ambient pressure: analysis of its multiferroicity

et al. 2012

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International audienceThe BiMnO3+delta phase has been prepared by mechanosynthesis, at ambient pressure and room temperature, as nanocrystalline powders. This oxide exhibits a metastable character, similar to those prepared by high-pressure and high-temperature methods, remaining stable up to 673 K. Nanostructured ceramic materials (92% densification), maintaining the BiMnO3+delta composition, have been successfully processed by the spark plasma sintering technique, at the very low temperature of 673 K, in a time as short as 6 minutes. Conditions of synthesis and sintering are the key factors that determine the actual delta value, or Mn oxidation state. This parameter plays an important role in their magnetic properties, which vary from ferromagnetic for lower delta values (the case of the mechanosynthesized and SPS processed samples) to spin-glass behavior for higher delta values (thermally annealed samples). Electrical measurements, carried out on the dense BiMnO3+delta ceramic material, show no evidence of ferroelectricity down to 77 K, in good accordance with previous structural studies that indicated their centrosymmetric structures

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Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Nanostructured BiMnO3+δ obtained at ambient pressure: analysis of its multiferroicity

et al. 2012

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“…BiMnO 3 exhibits ferroelectric as well as ferromagnetic properties and hence can be used as a good multiferroic material [10,11]. The Bi doped manganites have been shown to be prospective materials for multiferroic and bolometric applications [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Electron spin resonance and resistivity studies of charge-ordered Bi(1−x)SrxMnO3

Kurian

Singh

2011

Journal of Alloys and Compounds

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“…Usually, the amorphization reaction during mechanical treatment is related to the strain generated in the samples which enhance for rechargeable lithium batteries [22]. Although, preparation of perovskite BiMnO3 was successfully observed by high energy planetary ball mill [6]. Unfortunately, preparation of such perovskite by vertical ball mill (attritor) technique is not possible.…”

Section: Structurementioning

confidence: 99%

“…Single-phase of BiMnO3 was prepared in high energetic ball mill by mechanochemical synthesis method from Bi2O3 and Mn2O3 powder [5]. The perovskite BiMnO3 phase obtained was formed after amorphization of the constituent materials [6]. The preparation of perovskite BiMnO3 by solid-state reaction required high pressure and high temperature [7,8].…”

Section: Introductionmentioning

confidence: 99%

Structure, thermoelectric and electrical properties of bismuth-manganese oxide prepared by mechanochemical method

El‐Desoky

Hannora

Fareed

et al. 2021

Preprint

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Production of nanomaterials by mechanochemical synthesis is one of the important modern methods in new technology. Mechanochemical technique followed by heat treatment has been used to produce bismuth-manganese oxide from bismuth oxide and manganese dioxide. X-Ray Diffraction (XRD) analysis is conducted evaluate the structure changes during the mechanochemical process. Structure transformation from crystalline to complete amorphous phase was observed after short time of milling. The amorphization mechanism and reaction kinetics are examined in the light of the processing parameters and materials composition. Interdiffusion and distraction of the long rang order structure are the proposed mechanisms for amorphization. Bismuth manganese oxide phase with chemical formula Bi2Mn4O10 was formed after heat treatment at 1073 K. Bi2Mn4O10 partially decomposed to γ-Bi12.8O19.2 and α-Mn2O3. Crystallite size (47.6–102.4 nm) of the formed phases after heat treatment is significantly affecting the electrical properties. Thermoelectric power (S) of present samples was reported and the fraction C of reduced transition metal ions was calculated. The manganese ions concentration N were calculated and found to be increasing from 1.11 X1022 cm− 3 to 1.38 X1022 cm− 3, while the average distance between manganese ions R increased from 0.623nm to 0.647nm. The hopping carrier mobility (µ) of the prepared samples was also calculated at fixed temperature. From studying the conduction mechanism, the present work was found to agree with non-adiabatic process of small polaron hopping.

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Multiferroic bismuth manganite prepared by mechanochemical synthesis

Cited by 22 publications

References 13 publications

Nanostructured BiMnO3+δ obtained at ambient pressure: analysis of its multiferroicity

Nanostructured BiMnO3+δ obtained at ambient pressure: analysis of its multiferroicity

Electron spin resonance and resistivity studies of charge-ordered Bi(1−x)SrxMnO3

Structure, thermoelectric and electrical properties of bismuth-manganese oxide prepared by mechanochemical method

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