α-Fe2O3掺杂的带隙工程Cr2O3弱铁磁性

2018 IEEE 8th International Conference Nanomaterials: Application & Properties (NAP) Pub Date : 2018-09-01 DOI:10.1109/NAP.2018.8914931

R. Kumar, R. Raj, A. Venimadhav

{"title":"α-Fe2O3掺杂的带隙工程Cr2O3弱铁磁性","authors":"R. Kumar, R. Raj, A. Venimadhav","doi":"10.1109/NAP.2018.8914931","DOIUrl":null,"url":null,"abstract":"We report on tunable band engineering of $\\alpha-\\mathrm{Fe}_{2}\\mathrm{O}_{3}$ nanoparticles doping by various concentration of isostructure $\\mathrm{Cr}_{2} \\mathrm{O}_{3}$. Nanoparticles are prepared by sol-gel method, and it was found to stabilize in hexagonal crystal structure with R-3C space group. The room temperature, band gap studies have shown narrowing of the band gap 2.1 eV to 1.75 eV. Compared to pure antiferromagnetic $\\alpha-\\mathrm{Fe}_{2}\\mathrm{O}_{3}$ nanoparticles, ferromagnetism is significantly observed the doped $\\alpha-\\mathrm{Fe}_{2}\\mathrm{O}_{3}$. Our results improve the understanding of the structural, optical and magnetic properties of Cr doped $\\alpha - \\mathrm{Fe}2\\mathrm{O}_{3}$ as a potential candidate for spintronic applications.","PeriodicalId":239169,"journal":{"name":"2018 IEEE 8th International Conference Nanomaterials: Application & Properties (NAP)","volume":"134 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Weak Ferromagnetic in Band Gap Engineered Cr2O3 Doped with α-Fe2O3 Doped\",\"authors\":\"R. Kumar, R. Raj, A. Venimadhav\",\"doi\":\"10.1109/NAP.2018.8914931\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We report on tunable band engineering of $\\\\alpha-\\\\mathrm{Fe}_{2}\\\\mathrm{O}_{3}$ nanoparticles doping by various concentration of isostructure $\\\\mathrm{Cr}_{2} \\\\mathrm{O}_{3}$. Nanoparticles are prepared by sol-gel method, and it was found to stabilize in hexagonal crystal structure with R-3C space group. The room temperature, band gap studies have shown narrowing of the band gap 2.1 eV to 1.75 eV. Compared to pure antiferromagnetic $\\\\alpha-\\\\mathrm{Fe}_{2}\\\\mathrm{O}_{3}$ nanoparticles, ferromagnetism is significantly observed the doped $\\\\alpha-\\\\mathrm{Fe}_{2}\\\\mathrm{O}_{3}$. Our results improve the understanding of the structural, optical and magnetic properties of Cr doped $\\\\alpha - \\\\mathrm{Fe}2\\\\mathrm{O}_{3}$ as a potential candidate for spintronic applications.\",\"PeriodicalId\":239169,\"journal\":{\"name\":\"2018 IEEE 8th International Conference Nanomaterials: Application & Properties (NAP)\",\"volume\":\"134 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2018 IEEE 8th International Conference Nanomaterials: Application & Properties (NAP)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/NAP.2018.8914931\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 IEEE 8th International Conference Nanomaterials: Application & Properties (NAP)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NAP.2018.8914931","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

摘要

本文报道了用不同浓度的同位结构$\ mathm {Cr}_{2} \ mathm {O}_{3}$掺杂$\alpha-\ mathm {Fe}_{2}\ mathm {O}_{3}$纳米粒子的可调谐带工程。采用溶胶-凝胶法制备纳米颗粒，发现其具有稳定的六方晶体结构，具有R-3C空间基。室温下，带隙研究表明，带隙从2.1 eV缩小到1.75 eV。与纯反铁磁性$\ α -\ mathm {Fe}_{2}\ mathm {O}_{3}$纳米粒子相比，掺杂的$\ α -\ mathm {Fe}_{2}\ mathm {O}_{3}$具有明显的铁磁性。我们的结果提高了对Cr掺杂$\alpha - \ mathm {Fe}2\ mathm {O}_{3}$的结构、光学和磁性的理解，作为自旋电子应用的潜在候选材料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Weak Ferromagnetic in Band Gap Engineered Cr2O3 Doped with α-Fe2O3 Doped

We report on tunable band engineering of $\alpha-\mathrm{Fe}_{2}\mathrm{O}_{3}$ nanoparticles doping by various concentration of isostructure $\mathrm{Cr}_{2} \mathrm{O}_{3}$. Nanoparticles are prepared by sol-gel method, and it was found to stabilize in hexagonal crystal structure with R-3C space group. The room temperature, band gap studies have shown narrowing of the band gap 2.1 eV to 1.75 eV. Compared to pure antiferromagnetic $\alpha-\mathrm{Fe}_{2}\mathrm{O}_{3}$ nanoparticles, ferromagnetism is significantly observed the doped $\alpha-\mathrm{Fe}_{2}\mathrm{O}_{3}$. Our results improve the understanding of the structural, optical and magnetic properties of Cr doped $\alpha - \mathrm{Fe}2\mathrm{O}_{3}$ as a potential candidate for spintronic applications.

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

2018 IEEE 8th International Conference Nanomaterials: Application & Properties (NAP)

自引率

0.00%

发文量