{"title":"La0.8Sr0.2FeO3纳米晶改性磁性玻璃陶瓷的结构、EPR和穆斯堡尔谱","authors":"Qiuling Chen, Jianhua Fan, Qiuhua Ma","doi":"10.1007/s41779-023-00942-3","DOIUrl":null,"url":null,"abstract":"<div><p>In this study, perovskite La<sub>0.8</sub>Sr<sub>0.2</sub>FeO<sub>3</sub> nanocrystals were formed in heavy metal oxide glass under Al<sub>2</sub>O<sub>3</sub> tailoring. The influence of formation of La<sub>0.8</sub>Sr<sub>0.2</sub>FeO<sub>3</sub> to glass structure and magnetic behavior was studied through various techniques such as X-ray diffraction, Raman, X-ray photoelectron microscopy, electron paramagnetic resonance, and Mössbauer spectra. The 10-30 nm-orthogonal La<sub>0.8</sub>Sr<sub>0.2</sub>FeO<sub>3</sub> nanocrystals were synthesized and well distributed in glass whose structure and coordination numbers of B<sub>2</sub>O<sub>3</sub>, Al<sub>2</sub>O<sub>3</sub>, and Bi<sub>2</sub>O<sub>3</sub> were changed by the La<sub>0.8</sub>Sr<sub>0.2</sub>FeO<sub>3</sub> crystallization. Aluminum abnormality effect was observed in 10%Al<sub>2</sub>O<sub>3</sub> doped glass which showed highest transparency, smallest La<sub>0.8</sub>Sr<sub>0.2</sub>FeO<sub>3</sub> size (10 nm) and least non-bridging oxygen defects. The glass with 10%Al<sub>2</sub>O<sub>3</sub> exhibited enhanced electron paramagnetic resonance signal, highest (71%) tetrahedral FeO<sub>4</sub> units and improved Mössbauer sextets intensity which is promising for photonics device applications.</p></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"60 1","pages":"103 - 113"},"PeriodicalIF":1.8000,"publicationDate":"2023-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Structure, EPR, and Mössbauer spectra of La0.8Sr0.2FeO3 nanocrystals modified magnetic glass-ceramics\",\"authors\":\"Qiuling Chen, Jianhua Fan, Qiuhua Ma\",\"doi\":\"10.1007/s41779-023-00942-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In this study, perovskite La<sub>0.8</sub>Sr<sub>0.2</sub>FeO<sub>3</sub> nanocrystals were formed in heavy metal oxide glass under Al<sub>2</sub>O<sub>3</sub> tailoring. The influence of formation of La<sub>0.8</sub>Sr<sub>0.2</sub>FeO<sub>3</sub> to glass structure and magnetic behavior was studied through various techniques such as X-ray diffraction, Raman, X-ray photoelectron microscopy, electron paramagnetic resonance, and Mössbauer spectra. The 10-30 nm-orthogonal La<sub>0.8</sub>Sr<sub>0.2</sub>FeO<sub>3</sub> nanocrystals were synthesized and well distributed in glass whose structure and coordination numbers of B<sub>2</sub>O<sub>3</sub>, Al<sub>2</sub>O<sub>3</sub>, and Bi<sub>2</sub>O<sub>3</sub> were changed by the La<sub>0.8</sub>Sr<sub>0.2</sub>FeO<sub>3</sub> crystallization. Aluminum abnormality effect was observed in 10%Al<sub>2</sub>O<sub>3</sub> doped glass which showed highest transparency, smallest La<sub>0.8</sub>Sr<sub>0.2</sub>FeO<sub>3</sub> size (10 nm) and least non-bridging oxygen defects. The glass with 10%Al<sub>2</sub>O<sub>3</sub> exhibited enhanced electron paramagnetic resonance signal, highest (71%) tetrahedral FeO<sub>4</sub> units and improved Mössbauer sextets intensity which is promising for photonics device applications.</p></div>\",\"PeriodicalId\":673,\"journal\":{\"name\":\"Journal of the Australian Ceramic Society\",\"volume\":\"60 1\",\"pages\":\"103 - 113\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2023-08-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of the Australian Ceramic Society\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s41779-023-00942-3\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, CERAMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the Australian Ceramic Society","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s41779-023-00942-3","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
Structure, EPR, and Mössbauer spectra of La0.8Sr0.2FeO3 nanocrystals modified magnetic glass-ceramics
In this study, perovskite La0.8Sr0.2FeO3 nanocrystals were formed in heavy metal oxide glass under Al2O3 tailoring. The influence of formation of La0.8Sr0.2FeO3 to glass structure and magnetic behavior was studied through various techniques such as X-ray diffraction, Raman, X-ray photoelectron microscopy, electron paramagnetic resonance, and Mössbauer spectra. The 10-30 nm-orthogonal La0.8Sr0.2FeO3 nanocrystals were synthesized and well distributed in glass whose structure and coordination numbers of B2O3, Al2O3, and Bi2O3 were changed by the La0.8Sr0.2FeO3 crystallization. Aluminum abnormality effect was observed in 10%Al2O3 doped glass which showed highest transparency, smallest La0.8Sr0.2FeO3 size (10 nm) and least non-bridging oxygen defects. The glass with 10%Al2O3 exhibited enhanced electron paramagnetic resonance signal, highest (71%) tetrahedral FeO4 units and improved Mössbauer sextets intensity which is promising for photonics device applications.
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Journal of the Australian Ceramic Society since 1965
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