{"title":"结构缺陷对无铅Bi0.5 Na0.40K0.10TiO₃薄膜双铁行为的影响","authors":"Ngo Due Quan, Nguyen Due Minh, Hoang Viet Hung","doi":"10.1166/jnn.2021.19477","DOIUrl":null,"url":null,"abstract":"<p><p>Lead-free Bi<sub>0.5</sub>Na<sub>0.4</sub>K<sub>0.1</sub>TiO₃ (BNKT) ferroelectric films on Pt/TI/SIO₂/Si substrates were prepared via a sol-gel spin coating routine. The microstructures and multiferroic behaviors of the films were examined intimately as a function of the annealing time. A rise of annealing time enhanced the crystallization of the films via the perovskite structure. The multiferroic behavior, including simultaneously the magnetic and ferroelectric orders, was observed altogether the films. When the annealing time rose, ferroelectric and magnetic properties were found significantly increased. The remnant polarization (P<sub>r</sub>), also as maximum polarization (P<sub>m</sub>) respectively increased to the very best values of 11.5 µC/cm² and 40.0 µC/cm² under an applied electric field of 500 kV/cm. The saturated magnetization (<i>M<sub>s</sub></i>) of films increased to 2.3 emu/cm³ for the annealing time of 60 minutes. Oxygen vacancies, originating from the evaporation of metal ions during annealing at high temperatures are attributed to the explanation for ferromagnetism within the BNKT films.</p>","PeriodicalId":16417,"journal":{"name":"Journal of nanoscience and nanotechnology","volume":"21 11","pages":"5653-5658"},"PeriodicalIF":0.0000,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of Structural Deficiencies on Bi-Ferroic Behaviors of Lead-Free Bi<sub>0.5</sub> Na<sub>0.40</sub>K<sub>0.10</sub>TiO₃ Films.\",\"authors\":\"Ngo Due Quan, Nguyen Due Minh, Hoang Viet Hung\",\"doi\":\"10.1166/jnn.2021.19477\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Lead-free Bi<sub>0.5</sub>Na<sub>0.4</sub>K<sub>0.1</sub>TiO₃ (BNKT) ferroelectric films on Pt/TI/SIO₂/Si substrates were prepared via a sol-gel spin coating routine. The microstructures and multiferroic behaviors of the films were examined intimately as a function of the annealing time. A rise of annealing time enhanced the crystallization of the films via the perovskite structure. The multiferroic behavior, including simultaneously the magnetic and ferroelectric orders, was observed altogether the films. When the annealing time rose, ferroelectric and magnetic properties were found significantly increased. The remnant polarization (P<sub>r</sub>), also as maximum polarization (P<sub>m</sub>) respectively increased to the very best values of 11.5 µC/cm² and 40.0 µC/cm² under an applied electric field of 500 kV/cm. The saturated magnetization (<i>M<sub>s</sub></i>) of films increased to 2.3 emu/cm³ for the annealing time of 60 minutes. Oxygen vacancies, originating from the evaporation of metal ions during annealing at high temperatures are attributed to the explanation for ferromagnetism within the BNKT films.</p>\",\"PeriodicalId\":16417,\"journal\":{\"name\":\"Journal of nanoscience and nanotechnology\",\"volume\":\"21 11\",\"pages\":\"5653-5658\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of nanoscience and nanotechnology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1166/jnn.2021.19477\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of nanoscience and nanotechnology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1166/jnn.2021.19477","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Effect of Structural Deficiencies on Bi-Ferroic Behaviors of Lead-Free Bi0.5 Na0.40K0.10TiO₃ Films.
Lead-free Bi0.5Na0.4K0.1TiO₃ (BNKT) ferroelectric films on Pt/TI/SIO₂/Si substrates were prepared via a sol-gel spin coating routine. The microstructures and multiferroic behaviors of the films were examined intimately as a function of the annealing time. A rise of annealing time enhanced the crystallization of the films via the perovskite structure. The multiferroic behavior, including simultaneously the magnetic and ferroelectric orders, was observed altogether the films. When the annealing time rose, ferroelectric and magnetic properties were found significantly increased. The remnant polarization (Pr), also as maximum polarization (Pm) respectively increased to the very best values of 11.5 µC/cm² and 40.0 µC/cm² under an applied electric field of 500 kV/cm. The saturated magnetization (Ms) of films increased to 2.3 emu/cm³ for the annealing time of 60 minutes. Oxygen vacancies, originating from the evaporation of metal ions during annealing at high temperatures are attributed to the explanation for ferromagnetism within the BNKT films.
期刊介绍：
JNN is a multidisciplinary peer-reviewed journal covering fundamental and applied research in all disciplines of science, engineering and medicine. JNN publishes all aspects of nanoscale science and technology dealing with materials synthesis, processing, nanofabrication, nanoprobes, spectroscopy, properties, biological systems, nanostructures, theory and computation, nanoelectronics, nano-optics, nano-mechanics, nanodevices, nanobiotechnology, nanomedicine, nanotoxicology.
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