New solid solutions with the R-type hexaferrite structure, BaFe4-xMxM’2O11 (M = In, Sc; M’ = Ti, Sn)

IF 9.1 2区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Progress in Solid State Chemistry Pub Date : 2024-11-08 DOI:10.1016/j.progsolidstchem.2024.100494

Yu-An Huang , Jun Li , Arthur P. Ramirez , M.A. Subramanian

{"title":"New solid solutions with the R-type hexaferrite structure, BaFe4-xMxM’2O11 (M = In, Sc; M’ = Ti, Sn)","authors":"Yu-An Huang , Jun Li , Arthur P. Ramirez , M.A. Subramanian","doi":"10.1016/j.progsolidstchem.2024.100494","DOIUrl":null,"url":null,"abstract":"<div><div>Hexaferrites are a family of complex iron oxides with hexagonal structures. Novel compositions with the R-type hexaferrite structure, BaFe4-xMxM’2O11 (M = In, Sc; M’ = Ti, Sn; x = 0.0–1.8), are synthesized and characterized. Structural analyses using powder neutron diffraction reveal that trivalent iron cations are distributed among all the available M sites (octahedral and trigonal bipyramidal sites), with site preference varying with the composition. Ferrimagnetic behavior is observed for all the compounds, and the observed magnetic hysteresis loop indicates that the compounds are soft magnets. The color of the new solid solution can be tuned from dark reddish brown to reddish-orange and yellowish-orange as In or Sc substitutions increase. The origin of colors in these ferrite-based solid solutions results from the combination of ligand-to-metal charge transfer and electron-pair transitions across the face-shared octahedra, as seen in the hematite (Fe2O3). Reducing Fe content in the parent compound improves the diffuse reflectance in the near-infrared range, suggesting potential applications as cool pigments.</div></div>","PeriodicalId":415,"journal":{"name":"Progress in Solid State Chemistry","volume":"76 ","pages":"Article 100494"},"PeriodicalIF":9.1000,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress in Solid State Chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0079678624000578","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}

引用次数: 0

Abstract

Hexaferrites are a family of complex iron oxides with hexagonal structures. Novel compositions with the R-type hexaferrite structure, BaFe_4-xM_xM’₂O₁₁ (M = In, Sc; M’ = Ti, Sn; x = 0.0–1.8), are synthesized and characterized. Structural analyses using powder neutron diffraction reveal that trivalent iron cations are distributed among all the available M sites (octahedral and trigonal bipyramidal sites), with site preference varying with the composition. Ferrimagnetic behavior is observed for all the compounds, and the observed magnetic hysteresis loop indicates that the compounds are soft magnets. The color of the new solid solution can be tuned from dark reddish brown to reddish-orange and yellowish-orange as In or Sc substitutions increase. The origin of colors in these ferrite-based solid solutions results from the combination of ligand-to-metal charge transfer and electron-pair transitions across the face-shared octahedra, as seen in the hematite (Fe₂O₃). Reducing Fe content in the parent compound improves the diffuse reflectance in the near-infrared range, suggesting potential applications as cool pigments.

查看原文本刊更多论文

具有 R 型六铁氧体结构 BaFe4-xMxM'2O11 (M = In, Sc; M' = Ti, Sn) 的新固溶体

六铁氧体是一种具有六角形结构的复杂铁氧化物。本文合成并表征了具有 R 型六铁氧体结构的新型成分 BaFe4-xMxM'2O11（M = In、Sc；M' = Ti、Sn；x = 0.0-1.8）。利用粉末中子衍射进行的结构分析表明，三价铁阳离子分布在所有可用的 M 位点（八面体和三叉双锥位点）上，位点偏好随成分而变化。所有化合物都具有铁磁性，观察到的磁滞回线表明这些化合物是软磁体。随着 In 或 Sc 取代度的增加，新固溶体的颜色可从深红棕色调整为橘红色和橘黄色。这些铁基固溶体的颜色来源于配体到金属的电荷转移和面共八面体上的电子对跃迁，赤铁矿（Fe2O3）中就有这种现象。降低母体化合物中的铁含量可提高近红外范围的漫反射率，这表明它们有可能被用作冷颜料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Progress in Solid State Chemistry 化学-无机化学与核化学

CiteScore

14.10

自引率

3.30%

发文量

期刊介绍： Progress in Solid State Chemistry offers critical reviews and specialized articles written by leading experts in the field, providing a comprehensive view of solid-state chemistry. It addresses the challenge of dispersed literature by offering up-to-date assessments of research progress and recent developments. Emphasis is placed on the relationship between physical properties and structural chemistry, particularly imperfections like vacancies and dislocations. The reviews published in Progress in Solid State Chemistry emphasize critical evaluation of the field, along with indications of current problems and future directions. Papers are not intended to be bibliographic in nature but rather to inform a broad range of readers in an inherently multidisciplinary field by providing expert treatises oriented both towards specialists in different areas of the solid state and towards nonspecialists. The authorship is international, and the subject matter will be of interest to chemists, materials scientists, physicists, metallurgists, crystallographers, ceramists, and engineers interested in the solid state.