Structural, Electrical and Magnetic Properties of Pure and Substituted BiFeO<sub>3</sub>Multiferroics

Jangid, S.; Barbar, S. K.; Roy, M.

doi:10.1002/9781118773826.ch13

Cited by 4 publications

(4 citation statements)

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“…13−16 BiFeO 3 (or BFO) offers the advantage of being a multiferroic material, which can exhibit both ferroelectric and magnetic ordering at room temperature. 17 Spontaneous polarization can occur below 830 °C (its Curie temperature) and spontaneous magnetization below 370 °C. These relatively high temperatures make BFO a promising material candidate for new applications in spintronics, 18 sensors, 19 actuators, 20 water splitting, 21,22 or terahertz microscopy.…”

Section: ■ Introductionmentioning

confidence: 99%

“…40 Substitution of either Bi or Fe atoms or doping with rare or alkaline earth atom elements constitutes another potentially interesting mitigation strategy. 17,39,41,42 Another successful approach involves depositing a noble metal such as Pt, Au, or Ag nanoparticles on various BFO structures to achieve significant enhancement through Schottky barrier and/or surface plasmon resonance-induced absorption enhancement. 22,43−47 In this work, we explore electrospinning deposition of a precursor solution on a glass substrate to form high-quality crystalline BFO nanofibers for colloidal release-free photocatalysis applications.…”

Section: ■ Introductionmentioning

confidence: 99%

“…BiFeO 3 (or BFO) offers the advantage of being a multiferroic material, which can exhibit both ferroelectric and magnetic ordering at room temperature . Spontaneous polarization can occur below 830 °C (its Curie temperature) and spontaneous magnetization below 370 °C.…”

Section: Introductionmentioning

confidence: 99%

“…Compared to bulk photocatalyst materials, better performances are usually achieved using one-dimensional (1D) geometries as they can offer a higher surface-to-volume ratio and a shorter direct pathway to the redox surface reducing these recombination losses . Substitution of either Bi or Fe atoms or doping with rare or alkaline earth atom elements constitutes another potentially interesting mitigation strategy. ,,, Another successful approach involves depositing a noble metal such as Pt, Au, or Ag nanoparticles on various BFO structures to achieve significant enhancement through Schottky barrier and/or surface plasmon resonance-induced absorption enhancement. ,− …”

Section: Introductionmentioning

confidence: 99%

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Reusable BiFeO₃ Nanofiber-Based Membranes for Photo-activated Organic Pollutant Removal with Negligible Colloidal Release

Fourmont

Nechache

Cloutier

2021

ACS Appl. Nano Mater.

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We report on electrospinning-assisted fabrication of highly efficient and reusable BiFeO 3 nanofiber-based membranes for photo-activated organic pollutant removal with negligible colloidal release. For validation purposes, we exploit a fluorescent rhodamine B (RhB)-doped solution photo-degraded using visible and infrared illumination (λ ≥ 400 nm) from a solar simulator. As such, pollutant degradation can be directly monitored in real time. Fabrication yields an outstanding control of the fibers' morphology, and metal-enhanced photocatalytic properties are achieved by coating the nanofiber membranes with few nanometers of platinum using sputtering technique. This chemical-free functionalization of the nanofibers allows rapid and efficient RhB degradation. After optimization, 2.4 mg of photocatalyst achieves 93% removal after 150 min under solar illumination, which is impressively more efficient compared with previous reports. Most importantly, the colloidal release-free photocatalysis activity coupled to a manufacturing-ready fabrication process makes it ideal for large-scale deployment using industrial grade equipment.

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Section: ■ Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Reusable BiFeO₃ Nanofiber-Based Membranes for Photo-activated Organic Pollutant Removal with Negligible Colloidal Release

Fourmont

Nechache

Cloutier

2021

ACS Appl. Nano Mater.

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MOCVD Growth of Perovskite Multiferroic BiFeO₃ Films: The Effect of Doping at the A and/or B Sites on the Structural, Morphological and Ferroelectric Properties

Catalano

Spedalotto

Condorelli

et al. 2017

Adv Materials Inter

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reflects the promising applications of magnetoelectrics including magnetic field sensors, transducers, microwave devices, oscillators, phase shifters, heterogeneous read/write devices, spintronic devices, and so on. [4][5][6] Among various multiferroics, BiFeO 3 has attracted great attention in the last two decades, being the unique materials to have ferroelectric and magnetic transition temperatures well above room temperature. [7,8] These properties make BiFeO 3 very appealing for the above mentioned applications. In addition, doping BiFeO 3 thin films with rare-earth [9][10][11] represents one of the possible ways to obtain magnetoelectric systems. Recently, an electrical control of magnetic order by manipulating chemical pressure within the material has been achieved by lanthanum substitution in the antiferromagnetic ferroelectric BiFeO 3 . [12] BiFeO 3 oxide system has a slightly distorted perovskite structure. Perovskite structures of general formula ABO 3 play an important role due to their appealing and variegate functional properties. [13] In fact, a wide variety of substitutions at both A and B sites is responsible for the great flexibility of the perovskite structure giving rise to a very large number of derivatives with subtle variations in structure.Great efforts have focused on optimizing undoped BiFeO 3 to enhance the room temperature ferromagnetism. Among the various methods, ion substitution is the most useful and widely applied method to improve the multiferroic properties of BiFeO 3.[14] In particular, a lot of attention has been dedicated on doping of various elements like rare-earth, alkaline-earth metals and transition metals at the A or B site of bismuth ferrite to improve its magnetoelectric properties. [15][16][17] Considerable efforts have been devoted to the synthesis of BiFeO 3 at the nanoscale level [18] and to the study of its ferroelectric properties, but for the above mentioned applications BiFeO 3 is required in thin film forms. Up to date, BiFeO 3 films have been deposited on various substrates using physical vapor deposition techniques such as pulsed laser deposition (PLD), [19][20][21][22] molecular beam epitaxy [23,24] and sputtering. [25][26][27] Atomic layer deposition has been recently applied to the deposition of thin or ultrathin films of BiFeO 3 using a laminar layer approach, alternating Bismuth ferrite (BiFeO 3 ) materials have been the subject of intense research activity in the last two decades. The great interest arises from the BiFeO 3 being one of the rare multiferroic compounds in which ferroelectricity and magnetism coexist at room temperature. To improve these properties several studies have been reported on the doping at the A and/or B sites of the BiFeO 3 perovskite structure. In this short review, the attention is focused to the synthesis of BiFeO 3 and BiFeO 3 doped with Ba or Dy at the A site and Ti at the B site through Metal Organic Chemical Vapor Deposition (MOCVD). The applied MOCVD process consists of an in situ one step approach using a multi-metal s...

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Investigation of optical, dielectric, and multiferroic properties of (1 − x) Bi0.9La0.1FeO3–(x) BaTiO3 composites

Karma¹,

Saleem

Kaurav³

et al. 2022

J Mater Sci: Mater Electron

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Structural, Electrical and Magnetic Properties of Pure and Substituted BiFeO₃Multiferroics

Cited by 4 publications

References 85 publications

Reusable BiFeO₃ Nanofiber-Based Membranes for Photo-activated Organic Pollutant Removal with Negligible Colloidal Release

Reusable BiFeO₃ Nanofiber-Based Membranes for Photo-activated Organic Pollutant Removal with Negligible Colloidal Release

MOCVD Growth of Perovskite Multiferroic BiFeO₃ Films: The Effect of Doping at the A and/or B Sites on the Structural, Morphological and Ferroelectric Properties

Investigation of optical, dielectric, and multiferroic properties of (1 − x) Bi0.9La0.1FeO3–(x) BaTiO3 composites

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Structural, Electrical and Magnetic Properties of Pure and Substituted BiFeO3Multiferroics

Cited by 4 publications

References 85 publications

Reusable BiFeO3 Nanofiber-Based Membranes for Photo-activated Organic Pollutant Removal with Negligible Colloidal Release

Reusable BiFeO3 Nanofiber-Based Membranes for Photo-activated Organic Pollutant Removal with Negligible Colloidal Release

MOCVD Growth of Perovskite Multiferroic BiFeO3 Films: The Effect of Doping at the A and/or B Sites on the Structural, Morphological and Ferroelectric Properties

Investigation of optical, dielectric, and multiferroic properties of (1 − x) Bi0.9La0.1FeO3–(x) BaTiO3 composites

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Product

Resources

About

Structural, Electrical and Magnetic Properties of Pure and Substituted BiFeO₃Multiferroics

Reusable BiFeO₃ Nanofiber-Based Membranes for Photo-activated Organic Pollutant Removal with Negligible Colloidal Release

Reusable BiFeO₃ Nanofiber-Based Membranes for Photo-activated Organic Pollutant Removal with Negligible Colloidal Release

MOCVD Growth of Perovskite Multiferroic BiFeO₃ Films: The Effect of Doping at the A and/or B Sites on the Structural, Morphological and Ferroelectric Properties