Resolving magnetic contributions in BiFeO3 nanoparticles using First order reversal curves

Cardona-Rodríguez, Alexander; Rodríguez, Edwin Ramos; Carranza-Celis, Diego; Vergara-Duran, N.; Cruz, Alexsandro S. E. da; Londoño, Oscar Moscoso; Béron, Fanny; Knobel, M.; Reiber, Andreas; Muraca, Diego; Ramírez, Juan Gabriel

doi:10.1016/j.jmmm.2022.169409

Cited by 3 publications

(1 citation statement)

References 25 publications

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“…Motivated by these observations we attempted to examine whether capping by Ag the magnetization of nanoscale BiFeO 3 significantly and thus make them suitable for several applications including biomedical. This is all the more relevant for nanoscale BiFeO 3 since even bare nanoparticles of BiFeO 3 exhibit enhanced ferromagnetism at room temperature [10][11][12][13][14]. We report here that indeed decoration of multiferroic BiFeO 3 nanoparticles with Ag in the form of BiFeO 3 /Ag nanocomposite results in an order of magnitude rise in saturation magnetization at room temperature than what is observed in bare BiFeO 3 nanoparticles.…”

Section: Introductionmentioning

confidence: 86%

Charge-transfer-driven enhanced room-temperature ferromagnetism in BiFeO₃/Ag nanocomposite

Chatterjee,

Mishra,

Mukherjee

et al. 2023

Nanotechnology

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We report observation of more than an order of magnitude jump in saturation magnetization in BiFeO3/Ag nanocomposite at room temperature compared to what is observed in bare BiFeO3 nanoparticles. Using transmission electron microscopy together with energy dispersive x-ray spectra (which maps the element concentration across the BiFeO3/Ag interface) and x-ray photoelectron spectroscopy, we show that both the observed specific self-assembly pattern of BiFeO$_3$ and Ag nanoparticles and the charge transfer between Ag and O are responsible for such an enormous rise in room-temperature magnetization. The BiFeO3/Ag nanocomposites, therefore, could prove to be extremely useful for a variety of applications including biomedical.

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Section: Introductionmentioning

confidence: 86%

Charge-transfer-driven enhanced room-temperature ferromagnetism in BiFeO₃/Ag nanocomposite

Chatterjee,

Mishra,

Mukherjee

et al. 2023

Nanotechnology

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Investigation of structural, optical, magnetic and photocatalytic properties of Eu–Mg co-doped BiFeO3 nanoparticles

Parida,

Nanda,

Sarangi

2023

J Sol-Gel Sci Technol

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Tunable Optical and Multiferroic Properties of Zirconium and Dysprosium Substituted Bismuth Ferrite Thin Films

et al. 2022

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This work presents optical and multiferroic properties of bismuth ferrite thin films that are affected by zirconium and dysprosium substitution. Non-centrosymmetric BiFeO3,Bi0.95Zr0.05FeO3, and Bi0.95Dy0.05FeO3 thin films were coated on Pt/TiO2/SiO2/Si substrates using the spin coating method. The crystal structure, optical properties, microstructural, ferromagnetic, and ferroelectric properties of doped bismuth ferrite thin films were systematically investigated. From the XRD patterns, all the prepared thin films matched well with the rhombohedral structure with R3c space group with no observed impurity phases. The average crystallite size of the bismuth ferrite thin films were between 35 and 47 nm, and the size depended on the type of dopant. The determined energy band gap values of BiFeO3, Bi0.95Dy0.05FeO3, and Bi0.95Zr0.05FeO3 thin films were 2.32 eV, 2.3 eV, and 2 eV, respectively. Doping of Dy and Zr at the Bi site led to reduced surface roughness. The prepared thin films exhibited enhanced ferromagnetic and ferroelectric properties. The remnant magnetization of Zr-doped BiFeO3 was greater than that of the BiFeO3 and Dy-doped BiFeO3 thin films. From the obtained results, it was concluded that Zr-doped BiFeO3 thin films are suitable for solar cell fabrication.

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Resolving magnetic contributions in BiFeO3 nanoparticles using First order reversal curves

Cited by 3 publications

References 25 publications

Charge-transfer-driven enhanced room-temperature ferromagnetism in BiFeO₃/Ag nanocomposite

Charge-transfer-driven enhanced room-temperature ferromagnetism in BiFeO₃/Ag nanocomposite

Investigation of structural, optical, magnetic and photocatalytic properties of Eu–Mg co-doped BiFeO3 nanoparticles

Tunable Optical and Multiferroic Properties of Zirconium and Dysprosium Substituted Bismuth Ferrite Thin Films

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Resolving magnetic contributions in BiFeO3 nanoparticles using First order reversal curves

Cited by 3 publications

References 25 publications

Charge-transfer-driven enhanced room-temperature ferromagnetism in BiFeO3/Ag nanocomposite

Charge-transfer-driven enhanced room-temperature ferromagnetism in BiFeO3/Ag nanocomposite

Investigation of structural, optical, magnetic and photocatalytic properties of Eu–Mg co-doped BiFeO3 nanoparticles

Tunable Optical and Multiferroic Properties of Zirconium and Dysprosium Substituted Bismuth Ferrite Thin Films

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Product

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Charge-transfer-driven enhanced room-temperature ferromagnetism in BiFeO₃/Ag nanocomposite

Charge-transfer-driven enhanced room-temperature ferromagnetism in BiFeO₃/Ag nanocomposite