{"title":"BxFe(3-x)O4 纳米铁氧体颗粒的结构和随温度变化的介电性能","authors":"Paramesh Donta","doi":"10.1049/mna2.12194","DOIUrl":null,"url":null,"abstract":"<p>The auto-combustion technique was employed to synthesize nano particles of B<i><sub>x</sub></i>Fe<sub>(3−</sub><i><sub>x</sub></i><sub>)</sub>O<sub>4</sub> (<i>x</i> = 0.0, 0.7, 1.18, 1.36 and 1.54). The resulting structural and dielectric properties of the boron doped Fe<sub>3</sub>O<sub>4</sub> were evaluated. XRD analysis confirmed the presence of a single spinel structure with crystallite dimensions ranging from 21.18 to 26.43 nm and lattice parameters of 8.211 to 8.487 Ǻ. The morphological images revealed homogenous and spherical grain sizes, while EDX confirmed the presence of constituent elements used. The X-ray density increased whereas the bulk density and the porosity decreased with boron substitution. The study of dielectric properties and AC conductivity (<i>σ<sub>AC</sub></i>) was demonstrated and the AC conductivity decreased with increasing boron concentration, indicating a hopping mechanism. Moreover, noticeable variations in dielectric loss, AC conductivity, and dielectric permittivity with temperature and frequency were observed. These observations were attributed to the Maxwell–Wagner interfacial polarization and the hopping of charges between Fe<sup>3+</sup> and Fe<sup>2+</sup> ions.</p>","PeriodicalId":18398,"journal":{"name":"Micro & Nano Letters","volume":"19 3","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2024-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/mna2.12194","citationCount":"0","resultStr":"{\"title\":\"Structural and temperature dependent dielectric behaviour of BxFe(3−x)O4 nanoferrite particles\",\"authors\":\"Paramesh Donta\",\"doi\":\"10.1049/mna2.12194\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The auto-combustion technique was employed to synthesize nano particles of B<i><sub>x</sub></i>Fe<sub>(3−</sub><i><sub>x</sub></i><sub>)</sub>O<sub>4</sub> (<i>x</i> = 0.0, 0.7, 1.18, 1.36 and 1.54). The resulting structural and dielectric properties of the boron doped Fe<sub>3</sub>O<sub>4</sub> were evaluated. XRD analysis confirmed the presence of a single spinel structure with crystallite dimensions ranging from 21.18 to 26.43 nm and lattice parameters of 8.211 to 8.487 Ǻ. The morphological images revealed homogenous and spherical grain sizes, while EDX confirmed the presence of constituent elements used. The X-ray density increased whereas the bulk density and the porosity decreased with boron substitution. The study of dielectric properties and AC conductivity (<i>σ<sub>AC</sub></i>) was demonstrated and the AC conductivity decreased with increasing boron concentration, indicating a hopping mechanism. Moreover, noticeable variations in dielectric loss, AC conductivity, and dielectric permittivity with temperature and frequency were observed. These observations were attributed to the Maxwell–Wagner interfacial polarization and the hopping of charges between Fe<sup>3+</sup> and Fe<sup>2+</sup> ions.</p>\",\"PeriodicalId\":18398,\"journal\":{\"name\":\"Micro & Nano Letters\",\"volume\":\"19 3\",\"pages\":\"\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2024-03-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1049/mna2.12194\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Micro & Nano Letters\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1049/mna2.12194\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Micro & Nano Letters","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1049/mna2.12194","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Structural and temperature dependent dielectric behaviour of BxFe(3−x)O4 nanoferrite particles
The auto-combustion technique was employed to synthesize nano particles of BxFe(3−x)O4 (x = 0.0, 0.7, 1.18, 1.36 and 1.54). The resulting structural and dielectric properties of the boron doped Fe3O4 were evaluated. XRD analysis confirmed the presence of a single spinel structure with crystallite dimensions ranging from 21.18 to 26.43 nm and lattice parameters of 8.211 to 8.487 Ǻ. The morphological images revealed homogenous and spherical grain sizes, while EDX confirmed the presence of constituent elements used. The X-ray density increased whereas the bulk density and the porosity decreased with boron substitution. The study of dielectric properties and AC conductivity (σAC) was demonstrated and the AC conductivity decreased with increasing boron concentration, indicating a hopping mechanism. Moreover, noticeable variations in dielectric loss, AC conductivity, and dielectric permittivity with temperature and frequency were observed. These observations were attributed to the Maxwell–Wagner interfacial polarization and the hopping of charges between Fe3+ and Fe2+ ions.
期刊介绍：
Micro & Nano Letters offers express online publication of short research papers containing the latest advances in miniature and ultraminiature structures and systems. With an average of six weeks to decision, and publication online in advance of each issue, Micro & Nano Letters offers a rapid route for the international dissemination of high quality research findings from both the micro and nano communities.
Scope
Micro & Nano Letters offers express online publication of short research papers containing the latest advances in micro and nano-scale science, engineering and technology, with at least one dimension ranging from micrometers to nanometers. Micro & Nano Letters offers readers high-quality original research from both the micro and nano communities, and the materials and devices communities.
Bridging this gap between materials science and micro and nano-scale devices, Micro & Nano Letters addresses issues in the disciplines of engineering, physical, chemical, and biological science. It places particular emphasis on cross-disciplinary activities and applications.
Typical topics include:
Micro and nanostructures for the device communities
MEMS and NEMS
Modelling, simulation and realisation of micro and nanoscale structures, devices and systems, with comparisons to experimental data
Synthesis and processing
Micro and nano-photonics
Molecular machines, circuits and self-assembly
Organic and inorganic micro and nanostructures
Micro and nano-fluidics
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
