Structural, magnetic, and electrical properties of Gd-doped BiFeO3 nanoparticles with reduced particle size

Lotey, Gurmeet Singh; Verma, N. K.

doi:10.1007/s11051-012-0742-7

Cited by 151 publications

(46 citation statements)

References 17 publications

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“…The highest NBE/DLE value of 2.7 is seen for Bi 0.9 Gd 0.1 FeO 3 nanofibers. The high NBE/ DLE value of these nanofibers can be ascribed to the passivation of oxygen vacancies due to Gd doping [22,23]. This is in accordance with the studies carried out by Prashanthi et al, where the NBE/DLE value of BFO nanofibers was enhanced by annealing the samples in hydrogen; which led to the passivation of oxygen vacancies [11].…”

Section: Photoluminescence Spectrasupporting

confidence: 91%

The effect of gadolinium doping on the structural, magnetic and photoluminescence properties of electrospun bismuth ferrite nanofibers

Philip

Anitha

Natarajan

et al. 2015

Ceramics International

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Gadolinium (Gd) doped Bismuth ferrite (BFO) nanofibers (Bi 1 À x Gd x FeO 3 (x ¼ 0.0, 0.05, 0.10, 0.15 and 0.20)) were synthesized via electrospinning. Scanning Electron Microscope (SEM) analysis showed that the diameter of the nanofibers ranged from 150 to 250 nm. X-Ray Diffraction (XRD) analysis revealed a structural phase transition with varying 'x', the compositions with x r 0.10 have crystal structures with space group R3c, while the compositions with x 4 0.10 have crystal structures with space group Pnma. Vibrating Sample Magnetometer (VSM) analysis exhibited the weak ferromagnetic nature of the BFO nanofibers. However an increase in the saturated magnetic moment with increase in Gd dopant concentration was observed. The Photoluminescence (PL) spectra of the Bi 1 À x Gd x FeO 3 nanofibers show enhanced Near Band Emission (NBE) intensity at x ¼0.10 due to the passivation of oxygen vacancies by Gd doping.

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Section: Photoluminescence Spectrasupporting

confidence: 91%

The effect of gadolinium doping on the structural, magnetic and photoluminescence properties of electrospun bismuth ferrite nanofibers

Philip

Anitha

Natarajan

et al. 2015

Ceramics International

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show abstract

“…To estimate the concentration of oxygen vacancies X-ray photoelectron spectroscopy (XPS, ULVAC-PHI Inc., Model 1600) analysis was carried out with a Mg-Kα radiation source. [35,36] synthesized by wet chemical techniques. This indicates that the rhombohedral crystal structure of the bulk BiFeO 3 [6,7] remained unaltered in these synthesized nanoparticles.…”

Section: Methodsmentioning

confidence: 99%

Simple top-down preparation of magnetic Bi_0.9Gd_0.1Fe_1−xTi_xO₃nanoparticles by ultrasonication of multiferroic bulk material

et al. 2014

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We present a simple technique to synthesize ultrafine nanoparticles directly from bulk multiferroic perovskite powder. The starting materials, which were ceramic pellets of the nominal compositions of Bi0.9Gd0.1Fe1−xTixO3 (x = 0.00-0.20), were prepared initially by a solid state reaction technique, then ground into micrometer-sized powders and mixed with isopropanol or water in an ultrasonic bath. The particle size was studied as a function of sonication time with transmission electron microscopic imaging and electron diffraction that confirmed the formation of a large fraction of single-crystalline nanoparticles with a mean size of 11-13 nm. A significant improvement in the magnetic behavior of Bi0.9Gd0.1Fe1−xTixO3 nanoparticles compared to their bulk counterparts was observed at room temperature. This sonication technique may be considered as a simple and promising route to prepare ultrafine nanoparticles for functional applications.

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“…Magnetization studies were carried out on a vibrating sample magnetometer (VSM) attached to a physical property measurement system (Quantum Design PPMS). Transmission Mössbauer spectrum was measured at RT by using a 57 Co source (Rh -matrix, ~15 mCi) mounted on a constant acceleration Mössbauer drive from SEE Co., USA and a proportional counter. For the least -squares fitting of the Mössbauer spectrum we used the computer program NORMOS written by R. A.…”

Section: Characterization Techniquesmentioning

confidence: 99%

Composition dependent room temperature structure, electric and magnetic properties in magnetoelectric Pb(Fe 1/2 Nb 1/2 )O 3 Pb(Fe 2/3 W 1/3 )O 3 solid-solutions

Matteppanavar

Rayaprol

Angadi

et al. 2016

Journal of Alloys and Compounds

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Structural, magnetic, and electrical properties of Gd-doped BiFeO3 nanoparticles with reduced particle size

Cited by 151 publications

References 17 publications

The effect of gadolinium doping on the structural, magnetic and photoluminescence properties of electrospun bismuth ferrite nanofibers

The effect of gadolinium doping on the structural, magnetic and photoluminescence properties of electrospun bismuth ferrite nanofibers

Simple top-down preparation of magnetic Bi_0.9Gd_0.1Fe_1−xTi_xO₃nanoparticles by ultrasonication of multiferroic bulk material

Composition dependent room temperature structure, electric and magnetic properties in magnetoelectric Pb(Fe 1/2 Nb 1/2 )O 3 Pb(Fe 2/3 W 1/3 )O 3 solid-solutions

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Structural, magnetic, and electrical properties of Gd-doped BiFeO3 nanoparticles with reduced particle size

Cited by 151 publications

References 17 publications

The effect of gadolinium doping on the structural, magnetic and photoluminescence properties of electrospun bismuth ferrite nanofibers

The effect of gadolinium doping on the structural, magnetic and photoluminescence properties of electrospun bismuth ferrite nanofibers

Simple top-down preparation of magnetic Bi0.9Gd0.1Fe1−xTixO3nanoparticles by ultrasonication of multiferroic bulk material

Composition dependent room temperature structure, electric and magnetic properties in magnetoelectric Pb(Fe 1/2 Nb 1/2 )O 3 Pb(Fe 2/3 W 1/3 )O 3 solid-solutions

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Simple top-down preparation of magnetic Bi_0.9Gd_0.1Fe_1−xTi_xO₃nanoparticles by ultrasonication of multiferroic bulk material