Understanding magnetic interactions in SrFe12O19/CoFe2O4 nanocomposites: role of particle structure on exchange spring magnet behaviour

IF 2.6 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY Physica Scripta Pub Date : 2024-08-11 DOI:10.1088/1402-4896/ad69e3

N Idayanti, G Sugandi, T Kristiantoro, N Sudrajat, D Mulyadi, A Nuruddin, Dedi and A Manaf

{"title":"Understanding magnetic interactions in SrFe12O19/CoFe2O4 nanocomposites: role of particle structure on exchange spring magnet behaviour","authors":"N Idayanti, G Sugandi, T Kristiantoro, N Sudrajat, D Mulyadi, A Nuruddin, Dedi and A Manaf","doi":"10.1088/1402-4896/ad69e3","DOIUrl":null,"url":null,"abstract":"This study explores the impact of particle structure on the magnetic properties of SrFe12O19/CoFe2O4 nanocomposites. The investigation focuses on variations in particle sizes of SrFe12O19 (SHF) and CoFe2O4 (COF) with a mass ratio of 80:20, considering micro-scale poly-crystallite particles (Pp) and nano-scale mono-crystallite particles (Mp). Four sample structures (COM1, COM2, COM3, COM4) were prepared, each with different combinations of poly-crystallite and mono-crystallite particles. Morphological analysis through scanning electron microscopy and energy-dispersive x-ray spectroscopy revealed consistent grain shape and size post-sintering. Magnetic properties analysis using Permagraph indicated that grain fineness and uniformity influence the resulting magnetic properties, with composite samples featuring nano-sized hard or soft phases showing improved Mr, Ms, and (BH)max values compared to individual phases. The nanocomposite sample COM4, characterized by fine and uniform particle size, exhibited the highest remanence magnetization, Mr (34.55 emu g−1), saturation magnetization, Ms (66.44 emu g−1), and the maximum energy product, (BH)max (1.17 MGOe).","PeriodicalId":20067,"journal":{"name":"Physica Scripta","volume":null,"pages":null},"PeriodicalIF":2.6000,"publicationDate":"2024-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physica Scripta","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1088/1402-4896/ad69e3","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

This study explores the impact of particle structure on the magnetic properties of SrFe12O19/CoFe2O4 nanocomposites. The investigation focuses on variations in particle sizes of SrFe12O19 (SHF) and CoFe2O4 (COF) with a mass ratio of 80:20, considering micro-scale poly-crystallite particles (Pp) and nano-scale mono-crystallite particles (Mp). Four sample structures (COM1, COM2, COM3, COM4) were prepared, each with different combinations of poly-crystallite and mono-crystallite particles. Morphological analysis through scanning electron microscopy and energy-dispersive x-ray spectroscopy revealed consistent grain shape and size post-sintering. Magnetic properties analysis using Permagraph indicated that grain fineness and uniformity influence the resulting magnetic properties, with composite samples featuring nano-sized hard or soft phases showing improved Mr, Ms, and (BH)max values compared to individual phases. The nanocomposite sample COM4, characterized by fine and uniform particle size, exhibited the highest remanence magnetization, Mr (34.55 emu g−1), saturation magnetization, Ms (66.44 emu g−1), and the maximum energy product, (BH)max (1.17 MGOe).

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

了解 SrFe12O19/CoFe2O4 纳米复合材料中的磁相互作用：颗粒结构对交换弹簧磁体行为的作用

本研究探讨了颗粒结构对 SrFe12O19/CoFe2O4 纳米复合材料磁性能的影响。研究的重点是质量比为 80:20 的 SrFe12O19 (SHF) 和 CoFe2O4 (COF)颗粒尺寸的变化，考虑了微尺度多晶体颗粒 (Pp) 和纳米尺度单晶体颗粒 (Mp)。制备了四种样品结构（COM1、COM2、COM3、COM4），每种结构都有不同的多晶体和单晶体颗粒组合。通过扫描电子显微镜和能量色散 X 射线光谱进行的形态分析表明，烧结后的晶粒形状和尺寸一致。使用 Permagraph 进行的磁性能分析表明，晶粒细度和均匀性会影响所产生的磁性能，与单个相相比，具有纳米级硬相或软相的复合材料样品显示出更高的 Mr、Ms 和 (BH)max 值。纳米复合材料样品 COM4 的特点是粒度细且均匀，表现出最高的剩磁化率（Mr）（34.55 emu g-1）、饱和磁化率（Ms）（66.44 emu g-1）和最大能量积（(BH)max）（1.17 MGOe）。

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分钟内获得全文去求助

来源期刊

Physica Scripta 物理-物理：综合

CiteScore

3.70

自引率

3.40%

发文量

782

审稿时长

4.5 months

期刊介绍： Physica Scripta is an international journal for original research in any branch of experimental and theoretical physics. Articles will be considered in any of the following topics, and interdisciplinary topics involving physics are also welcomed: -Atomic, molecular and optical physics- Plasma physics- Condensed matter physics- Mathematical physics- Astrophysics- High energy physics- Nuclear physics- Nonlinear physics. The journal aims to increase the visibility and accessibility of research to the wider physical sciences community. Articles on topics of broad interest are encouraged and submissions in more specialist fields should endeavour to include reference to the wider context of their research in the introduction.