Prakash Bongurala, P. Syam Prasad, S. Narayana Jammalamadaka
{"title":"α-Fe2O3-BaTiO3颗粒复合材料的结构、磁性和光学性能","authors":"Prakash Bongurala, P. Syam Prasad, S. Narayana Jammalamadaka","doi":"10.1007/s10948-026-07165-0","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>Tuning magnetic, optical and structural properties with a compressive stress (strain) is a key goal for developing next-generation low-power memory and spintronic devices. In this study, we explore strain-mediated magnetoelectric coupling in α-Fe<sub>2</sub>O<sub>3</sub>–BaTiO<sub>3</sub> (BTO) particulate composites synthesized via a co-precipitation method. Structural and morphological analyses confirm phase-pure composites with strong interfacial contact. Saturation magnetization of the composite (<i>x</i>)BTO + (1–<i>x</i>)Fe<sub>2</sub>O<sub>3</sub> decreases with an increase in the BTO fraction (<i>x</i>) from 0 to 0.5. Raman spectroscopy shows shifts in vibrational modes due to compressive stress in BTO, while UV–Visible spectroscopy indicates a reduction in bandgap of BTO with an increase in Fe<sub>2</sub>O<sub>3</sub> content. These findings demonstrate compressive strain that exist at the interface is key to modify the physical properties of the α-Fe<sub>2</sub>O<sub>3</sub>–BaTiO<sub>3</sub> (BTO) particulate composites. </p>\n </div>","PeriodicalId":669,"journal":{"name":"Journal of Superconductivity and Novel Magnetism","volume":"39 2","pages":""},"PeriodicalIF":1.7000,"publicationDate":"2026-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The Structural, Magnetic and Optical Properties of α-Fe2O3-BaTiO3 Particulate Composites\",\"authors\":\"Prakash Bongurala, P. Syam Prasad, S. Narayana Jammalamadaka\",\"doi\":\"10.1007/s10948-026-07165-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n <p>Tuning magnetic, optical and structural properties with a compressive stress (strain) is a key goal for developing next-generation low-power memory and spintronic devices. In this study, we explore strain-mediated magnetoelectric coupling in α-Fe<sub>2</sub>O<sub>3</sub>–BaTiO<sub>3</sub> (BTO) particulate composites synthesized via a co-precipitation method. Structural and morphological analyses confirm phase-pure composites with strong interfacial contact. Saturation magnetization of the composite (<i>x</i>)BTO + (1–<i>x</i>)Fe<sub>2</sub>O<sub>3</sub> decreases with an increase in the BTO fraction (<i>x</i>) from 0 to 0.5. Raman spectroscopy shows shifts in vibrational modes due to compressive stress in BTO, while UV–Visible spectroscopy indicates a reduction in bandgap of BTO with an increase in Fe<sub>2</sub>O<sub>3</sub> content. These findings demonstrate compressive strain that exist at the interface is key to modify the physical properties of the α-Fe<sub>2</sub>O<sub>3</sub>–BaTiO<sub>3</sub> (BTO) particulate composites. </p>\\n </div>\",\"PeriodicalId\":669,\"journal\":{\"name\":\"Journal of Superconductivity and Novel Magnetism\",\"volume\":\"39 2\",\"pages\":\"\"},\"PeriodicalIF\":1.7000,\"publicationDate\":\"2026-03-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Superconductivity and Novel Magnetism\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10948-026-07165-0\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"PHYSICS, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Superconductivity and Novel Magnetism","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s10948-026-07165-0","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}
The Structural, Magnetic and Optical Properties of α-Fe2O3-BaTiO3 Particulate Composites
Tuning magnetic, optical and structural properties with a compressive stress (strain) is a key goal for developing next-generation low-power memory and spintronic devices. In this study, we explore strain-mediated magnetoelectric coupling in α-Fe2O3–BaTiO3 (BTO) particulate composites synthesized via a co-precipitation method. Structural and morphological analyses confirm phase-pure composites with strong interfacial contact. Saturation magnetization of the composite (x)BTO + (1–x)Fe2O3 decreases with an increase in the BTO fraction (x) from 0 to 0.5. Raman spectroscopy shows shifts in vibrational modes due to compressive stress in BTO, while UV–Visible spectroscopy indicates a reduction in bandgap of BTO with an increase in Fe2O3 content. These findings demonstrate compressive strain that exist at the interface is key to modify the physical properties of the α-Fe2O3–BaTiO3 (BTO) particulate composites.
期刊介绍：
The Journal of Superconductivity and Novel Magnetism serves as the international forum for the most current research and ideas in these fields. This highly acclaimed journal publishes peer-reviewed original papers, conference proceedings and invited review articles that examine all aspects of the science and technology of superconductivity, including new materials, new mechanisms, basic and technological properties, new phenomena, and small- and large-scale applications. Novel magnetism, which is expanding rapidly, is also featured in the journal. The journal focuses on such areas as spintronics, magnetic semiconductors, properties of magnetic multilayers, magnetoresistive materials and structures, magnetic oxides, etc. Novel superconducting and magnetic materials are complex compounds, and the journal publishes articles related to all aspects their study, such as sample preparation, spectroscopy and transport properties as well as various applications.
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