{"title":"An investigation of structural, magnetic and electrical properties of Ca dominant A-site tungsten bronze ferroelectric ceramic","authors":"Shristi Chaudhary, Sheela Devi, Shilpi Jindal","doi":"10.1007/s12034-024-03280-7","DOIUrl":null,"url":null,"abstract":"<div><p>Ba<sub>0.95</sub>Sr<sub>0.05</sub>Ca<sub>5</sub>Ti<sub>2</sub>Nb<sub>8</sub>O<sub>30</sub> sample was prepared by solid-state reaction technique to investigate structural, optical, magnetic and dielectric properties via performing different characterizations. XRD reveals the orthorhombic structure with Pbcn space group along with Rietveld refinement. Grain size of the bulk sample was carried out by SEM, which is 1.25μm. Then, microstructural correlated with optical by means of Raman, FTIR and PL spectroscopies. Raman studies reveal the presence of different modes along with band assignments. FTIR and PL studies reveal the bonding modes of A- and B-site atoms, which give the energy band gap around 2.969, 2.441 and 2.012 eV for different bond contributions. The magnetic property was carried out by VSM. The dielectric properties, as a function of frequency and temperature, were carried out and reveal that the bulk sample can be used as storage devices. The modulus spectroscopy was calculated from dielectric studies to analyse electrical properties.</p></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 3","pages":""},"PeriodicalIF":1.9000,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin of Materials Science","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s12034-024-03280-7","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Ba0.95Sr0.05Ca5Ti2Nb8O30 sample was prepared by solid-state reaction technique to investigate structural, optical, magnetic and dielectric properties via performing different characterizations. XRD reveals the orthorhombic structure with Pbcn space group along with Rietveld refinement. Grain size of the bulk sample was carried out by SEM, which is 1.25μm. Then, microstructural correlated with optical by means of Raman, FTIR and PL spectroscopies. Raman studies reveal the presence of different modes along with band assignments. FTIR and PL studies reveal the bonding modes of A- and B-site atoms, which give the energy band gap around 2.969, 2.441 and 2.012 eV for different bond contributions. The magnetic property was carried out by VSM. The dielectric properties, as a function of frequency and temperature, were carried out and reveal that the bulk sample can be used as storage devices. The modulus spectroscopy was calculated from dielectric studies to analyse electrical properties.
期刊介绍：
The Bulletin of Materials Science is a bi-monthly journal being published by the Indian Academy of Sciences in collaboration with the Materials Research Society of India and the Indian National Science Academy. The journal publishes original research articles, review articles and rapid communications in all areas of materials science. The journal also publishes from time to time important Conference Symposia/ Proceedings which are of interest to materials scientists. It has an International Advisory Editorial Board and an Editorial Committee. The Bulletin accords high importance to the quality of articles published and to keep at a minimum the processing time of papers submitted for publication.
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