{"title":"Optimization of magnetic and magnetodielectric effect for BiFe(Nd)O3 nanoparticles","authors":"Gayatree Mandal, Rajkumar Singha, M. N. Goswami","doi":"10.1007/s11051-024-06149-2","DOIUrl":null,"url":null,"abstract":"<div><p>The BiFe<sub>1-<i>x</i></sub>Nd<sub><i>x</i></sub>O<sub>3</sub> (<i>x</i> = 0.00, 0.03, 0.06, 0.09, 0.12) (BFNO) nanoparticles have been synthesized successfully through the chemical coprecipitation technique. The effect of neodymium (Nd) doping on structural, dielectric, magnetic, and magnetodielectric properties of BiFeO<sub>3</sub> (BFO) multiferroic nanoparticles has been reported here. The Rietveld refinement of X-ray diffraction (XRD) data confirms the formation of rhombohedral crystal structure (R3c space group) of the prepared nanomaterials. The average crystallite size obtained from XRD is in the range of 54 to 21 nm for pure and doped materials. The transmission electron microscope (TEM), high-resolution TEM (HRTEM), and energy dispersive X-ray (EDX) of the samples indicate the particle size, high crystallinity, and incorporation of Nd<sup>3+</sup> ions respectively. The dielectric parameters and real-imaginary part of impedance behavior point out the transport mechanism of the doped samples. The magnetic and magnetodielectric properties of the doped nanomaterials have been enhanced than the pure BFO. The magnetic moment of BFNO samples increases due to the suppression of oxygen vacancies in accordance with the reduced super-exchange interaction of Fe<sup>2+</sup>-O-Fe<sup>3+</sup>. The leakage current and the multiferroic properties have been checked for all the samples at room temperature.</p></div>","PeriodicalId":653,"journal":{"name":"Journal of Nanoparticle Research","volume":"26 10","pages":""},"PeriodicalIF":2.1000,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Nanoparticle Research","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11051-024-06149-2","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The BiFe1-xNdxO3 (x = 0.00, 0.03, 0.06, 0.09, 0.12) (BFNO) nanoparticles have been synthesized successfully through the chemical coprecipitation technique. The effect of neodymium (Nd) doping on structural, dielectric, magnetic, and magnetodielectric properties of BiFeO3 (BFO) multiferroic nanoparticles has been reported here. The Rietveld refinement of X-ray diffraction (XRD) data confirms the formation of rhombohedral crystal structure (R3c space group) of the prepared nanomaterials. The average crystallite size obtained from XRD is in the range of 54 to 21 nm for pure and doped materials. The transmission electron microscope (TEM), high-resolution TEM (HRTEM), and energy dispersive X-ray (EDX) of the samples indicate the particle size, high crystallinity, and incorporation of Nd3+ ions respectively. The dielectric parameters and real-imaginary part of impedance behavior point out the transport mechanism of the doped samples. The magnetic and magnetodielectric properties of the doped nanomaterials have been enhanced than the pure BFO. The magnetic moment of BFNO samples increases due to the suppression of oxygen vacancies in accordance with the reduced super-exchange interaction of Fe2+-O-Fe3+. The leakage current and the multiferroic properties have been checked for all the samples at room temperature.
期刊介绍：
The objective of the Journal of Nanoparticle Research is to disseminate knowledge of the physical, chemical and biological phenomena and processes in structures that have at least one lengthscale ranging from molecular to approximately 100 nm (or submicron in some situations), and exhibit improved and novel properties that are a direct result of their small size.
Nanoparticle research is a key component of nanoscience, nanoengineering and nanotechnology.
The focus of the Journal is on the specific concepts, properties, phenomena, and processes related to particles, tubes, layers, macromolecules, clusters and other finite structures of the nanoscale size range. Synthesis, assembly, transport, reactivity, and stability of such structures are considered. Development of in-situ and ex-situ instrumentation for characterization of nanoparticles and their interfaces should be based on new principles for probing properties and phenomena not well understood at the nanometer scale. Modeling and simulation may include atom-based quantum mechanics; molecular dynamics; single-particle, multi-body and continuum based models; fractals; other methods suitable for modeling particle synthesis, assembling and interaction processes. Realization and application of systems, structures and devices with novel functions obtained via precursor nanoparticles is emphasized. Approaches may include gas-, liquid-, solid-, and vacuum-based processes, size reduction, chemical- and bio-self assembly. Contributions include utilization of nanoparticle systems for enhancing a phenomenon or process and particle assembling into hierarchical structures, as well as formulation and the administration of drugs. Synergistic approaches originating from different disciplines and technologies, and interaction between the research providers and users in this field, are encouraged.
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