Investigation of structural and electrical properties of NdFeO3 perovskite nanocrystalline

Shanker, Jada; Rao, G. Narsinga; Venkataramana, Kasarapu

doi:10.1016/j.physleta.2018.07.002

Cited by 39 publications

(12 citation statements)

References 19 publications

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“…The microstructure also reveals that the synthesis method adopted resulted in products with pores. The presence of pores in NdFeO 3 has been reported in the literature [34]. This morphology is sharply different from that reported for NdCo x Fe 1−x O 3 via the sol-gel method [20].…”

Section: Scanning Electron Microscopy Analysiscontrasting

confidence: 54%

Effect of B-site Co substitution on the structure and magnetic properties of nanocrystalline neodymium orthoferrite synthesized by auto-combustion

et al. 2021

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Samples of cobalt-doped neodymium orthoferrite compounds, NdCo x Fe 1−x O 3 (0.0 ≤ x ≤ 0.5) were synthesized via glycine auto-combustion between 250 and 300°C and calcined at 500°C for 2 h. X-ray diffraction showed that all compounds had an orthorhombic perovskite structure with space group Pbnm. Increasing cobalt doping gradually reduced the lattice parameters and contracted the unit cell volume. Both X-ray diffraction and scanning electron microscopy showed that the particles were spherical and in the nano-sized range (19–52 nm) with pores between grains. Vibrating sample magnetometry at room temperature indicated that NdFeO 3 has a high coercive field (1950 Oe) and cobalt substitution for iron led to a decrease in the coercive field, saturation and remanent magnetization, which was as a result of decreased magnetic moments in the crystal and reduced canting of the FeO 6 octahedra. The increase in magnetization and coercive fields with increase of Co was connected to the microstructure (bond lengths and angles, defects, pores, grain boundaries) and crystallite size. The compounds NdCo x Fe 1−x O 3 show antiferromagnetism with weak ferromagnetism due to uncompensated non-collinear moments. These compounds could serve as prototypes for tuning the properties of magnetic materials (ferromagnetic and antiferromagnetic) with potential applications in data storage, logic gates, switches and sensors.

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Section: Scanning Electron Microscopy Analysiscontrasting

confidence: 54%

Effect of B-site Co substitution on the structure and magnetic properties of nanocrystalline neodymium orthoferrite synthesized by auto-combustion

et al. 2021

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“…[8][9][10][11]. Among these applications, the NdFeO 3 nanoscale materials, known as orthorhombically distorted perovskites [12,13], have significant potential applications in As (V) adsorption [8] and the fabrication of electrical and magneto-optic devices [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Simple Synthesis of NdFeO3 Nanoparticles By the Co-Precipitation Method Based on a Study of Thermal Behaviors of Fe (III) and Nd (III) Hydroxides

Nguyen

Pham

et al. 2020

Crystals

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In this study, a nanostructured NdFeO3 material was synthesized via a simple process of the hydrolysis of Nd (III) and Fe (III) cations in hot water with 5% NaOH as a precipitating agent. According to the results of the thermal behaviors of each hydroxide, either containing Fe (III) or Nd (III), the perovskite type of neodymium orthoferrite NdFeO3 was simply synthesized by annealing a mixture of Fe (III) and Nd (III) hydroxides at 750 °C. The nanostructured NdFeO3 was obtained in spherical granules with diameters of around 30 nm. The magnetic properties of the material were a coercive force (Hc) of 136.76 Oe, a remanent magnetization (Mr) of 0.68 emu·g–1, and a saturation magnetization (Ms) of 0.79 emu·g–1.

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“…Among semiconductors, oxides with a perovskite-like structure of the ReMeO 3 type (Re -rare-earth elements; Me -transition metals) have both significance and importance for their application and fundamental research [1][2][3][4][5][6][7][8], since these oxides have a high sensitivity of properties to decrease in particle size to nanometer values. Among the rareearth orthoferrites, PrFeO 3 was obtained and used in some fields, such as magneto-optical devices and electromagnetic equipment [9][10][11][12][13], photocatalysts [14][15][16], dyes, and inorganic pigments [17,18].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and magnetic properties of PrFeO3 nanopowders by the co-precipitation method using ethanol

Nguyen¹,

Nguyen²,

Mittova³

et al. 2020

Nanosystems: Phys. Chem. Math.

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Praseodymium orthoferrite nanoparticles were synthesized by a simple co-precipitation method via the hydrolysis of Pr (III) and Fe (III) cations in boiling ethanol with 5% aqueous ammonia. The single-phase PrFeO 3 product formed after annealing the precipitates at 650, 750, and 850 • C for 1 h had an average crystal size of 20-30 nm (XRD, SEM, TEM). The synthesized nanopowders were soft ferromagnetic materials with low coercive force and excessive magnetization values.

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Investigation of structural and electrical properties of NdFeO3 perovskite nanocrystalline

Cited by 39 publications

References 19 publications

Effect of B-site Co substitution on the structure and magnetic properties of nanocrystalline neodymium orthoferrite synthesized by auto-combustion

Effect of B-site Co substitution on the structure and magnetic properties of nanocrystalline neodymium orthoferrite synthesized by auto-combustion

Simple Synthesis of NdFeO3 Nanoparticles By the Co-Precipitation Method Based on a Study of Thermal Behaviors of Fe (III) and Nd (III) Hydroxides

Synthesis and magnetic properties of PrFeO3 nanopowders by the co-precipitation method using ethanol

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