na掺杂GaFeO3的磁电性质和Morin型自旋跃迁。

IF 2.3 4区 物理与天体物理 Q3 PHYSICS, CONDENSED MATTER
Zamzama Rahmany, Savitha Pillai S
{"title":"na掺杂GaFeO3的磁电性质和Morin型自旋跃迁。","authors":"Zamzama Rahmany, Savitha Pillai S","doi":"10.1088/1361-648X/ada413","DOIUrl":null,"url":null,"abstract":"<p><p>The effects of Na doping on the structure magnetic, electric, and magnetoelectric properties of GaFeO<sub>3</sub>were studied. Rietveld refinement of the XRD data reveals the formation of a single-phase trigonal structure with no impurity on Na doping up to 50% and a significant increase in lattice strain with doping. FTIR and Raman analysis further supported the phase purity of the samples. The morphology of the samples was studied using FESEM, and the particle size increased with Na doping. Magnetic data shows room temperature ferrimagnetic properties. Temperature-dependent magnetization measurements revealed a noticeable change from GaFeO<sub>3</sub>, exhibiting a Morin-like transition at 182 K for the lowest Na content. This AFM transition temperature increased to 217 K with the highest Na doping levels. The temperature-dependent Raman spectra do not reveal any structural phase transition and show a distinct change in phonon modes near the spin reorientation temperature. The leakage current density of the samples at 100 volts increased from 10<sup>-8</sup>A cm<sup>-2</sup>to (10<sup>-4</sup>-10<sup>-5</sup>A cm<sup>-2</sup>) with Na doping. The frequency-dependent dielectric constant increased largely with doping. The magnetoelectric coupling coefficient measured at room temperature rises for<i>x</i>= 0.05 to (36.2 ps m<sup>-1</sup>) and slowly decreases as Na concentration increases.</p>","PeriodicalId":16776,"journal":{"name":"Journal of Physics: Condensed Matter","volume":"37 11","pages":""},"PeriodicalIF":2.3000,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Magnetoelectric properties and Morin type spin transitions of Na-doped GaFeO<sub>3</sub>.\",\"authors\":\"Zamzama Rahmany, Savitha Pillai S\",\"doi\":\"10.1088/1361-648X/ada413\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The effects of Na doping on the structure magnetic, electric, and magnetoelectric properties of GaFeO<sub>3</sub>were studied. Rietveld refinement of the XRD data reveals the formation of a single-phase trigonal structure with no impurity on Na doping up to 50% and a significant increase in lattice strain with doping. FTIR and Raman analysis further supported the phase purity of the samples. The morphology of the samples was studied using FESEM, and the particle size increased with Na doping. Magnetic data shows room temperature ferrimagnetic properties. Temperature-dependent magnetization measurements revealed a noticeable change from GaFeO<sub>3</sub>, exhibiting a Morin-like transition at 182 K for the lowest Na content. This AFM transition temperature increased to 217 K with the highest Na doping levels. The temperature-dependent Raman spectra do not reveal any structural phase transition and show a distinct change in phonon modes near the spin reorientation temperature. The leakage current density of the samples at 100 volts increased from 10<sup>-8</sup>A cm<sup>-2</sup>to (10<sup>-4</sup>-10<sup>-5</sup>A cm<sup>-2</sup>) with Na doping. The frequency-dependent dielectric constant increased largely with doping. The magnetoelectric coupling coefficient measured at room temperature rises for<i>x</i>= 0.05 to (36.2 ps m<sup>-1</sup>) and slowly decreases as Na concentration increases.</p>\",\"PeriodicalId\":16776,\"journal\":{\"name\":\"Journal of Physics: Condensed Matter\",\"volume\":\"37 11\",\"pages\":\"\"},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2025-01-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Physics: Condensed Matter\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1088/1361-648X/ada413\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"PHYSICS, CONDENSED MATTER\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Physics: Condensed Matter","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1088/1361-648X/ada413","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, CONDENSED MATTER","Score":null,"Total":0}
引用次数: 0

摘要

研究了Na掺杂对gafeo3结构、磁性、电学和磁电性能的影响。对XRD数据进行Rietveld细化,结果表明,当Na掺杂达到50%时,形成了无杂质的单相三角结构,晶格应变显著增加。FTIR和拉曼分析进一步支持了样品的相纯度。用FESEM对样品形貌进行了研究,发现随着Na的掺杂,样品的粒径逐渐增大。磁性数据显示室温铁磁特性。温度相关的磁化测量显示了GaFeO3的明显变化,在182 K时表现出最低Na含量的morin样转变。当Na掺杂水平最高时,AFM转变温度达到217 K。温度相关的拉曼光谱没有显示出任何结构相变,并且在自旋取向温度附近声子模式有明显的变化。掺入Na后,样品在100伏时的漏电流密度由10-8A cm-2提高到(10-4-10-5A cm-2)。随着掺杂的增加,介电常数随频率的增加而增加。在室温下测得的磁电耦合系数从0.05上升到36.2 ps m-1,随着Na浓度的增加而缓慢下降。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Magnetoelectric properties and Morin type spin transitions of Na-doped GaFeO3.

The effects of Na doping on the structure magnetic, electric, and magnetoelectric properties of GaFeO3were studied. Rietveld refinement of the XRD data reveals the formation of a single-phase trigonal structure with no impurity on Na doping up to 50% and a significant increase in lattice strain with doping. FTIR and Raman analysis further supported the phase purity of the samples. The morphology of the samples was studied using FESEM, and the particle size increased with Na doping. Magnetic data shows room temperature ferrimagnetic properties. Temperature-dependent magnetization measurements revealed a noticeable change from GaFeO3, exhibiting a Morin-like transition at 182 K for the lowest Na content. This AFM transition temperature increased to 217 K with the highest Na doping levels. The temperature-dependent Raman spectra do not reveal any structural phase transition and show a distinct change in phonon modes near the spin reorientation temperature. The leakage current density of the samples at 100 volts increased from 10-8A cm-2to (10-4-10-5A cm-2) with Na doping. The frequency-dependent dielectric constant increased largely with doping. The magnetoelectric coupling coefficient measured at room temperature rises forx= 0.05 to (36.2 ps m-1) and slowly decreases as Na concentration increases.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Journal of Physics: Condensed Matter
Journal of Physics: Condensed Matter 物理-物理:凝聚态物理
CiteScore
5.30
自引率
7.40%
发文量
1288
审稿时长
2.1 months
期刊介绍: Journal of Physics: Condensed Matter covers the whole of condensed matter physics including soft condensed matter and nanostructures. Papers may report experimental, theoretical and simulation studies. Note that papers must contain fundamental condensed matter science: papers reporting methods of materials preparation or properties of materials without novel condensed matter content will not be accepted.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信