Carlos Augusto Estrada-Rodriguez, Lutiene Fernandes-Lopes, Rovan Fernandes-Lopes, Fabiano Mesquita, Águeda Maria Turatti, Jorge Luiz Pimentel-Junior, Santiago Sandoval-Gutiérrez, C. A. Parra Vargas
{"title":"Ba1-xNaxCoO3(x=0.25,0.5,0.75)化合物的结构、磁性和电性能研究","authors":"Carlos Augusto Estrada-Rodriguez, Lutiene Fernandes-Lopes, Rovan Fernandes-Lopes, Fabiano Mesquita, Águeda Maria Turatti, Jorge Luiz Pimentel-Junior, Santiago Sandoval-Gutiérrez, C. A. Parra Vargas","doi":"10.18273/revuin.v20n4-2021010","DOIUrl":null,"url":null,"abstract":"Cobaltite-like materials having metal-insulator transitions are relevant in the consumer electronics market. In this work, we present the structural, magnetic, and electrical properties of Ba1-xNaxCoO3 (with x= 0.25, 0.5, 0.75) cobaltite. All samples were synthesized using a solid-state reaction process. Their crystal structure was determined using X-ray diffraction (XRD) data by the Rietveld method, which showed that all the samples were crystallized in the orthorhombic space group C2221 (N.° 20). The microstructure of the sintered samples was characterized by scanning electron microscopy (SEM). The magnetic susceptibility measurements confirmed a paramagnetic behavior for x≥ 0.5 in the temperature range that was used. Likewise, a broad peak around 33 K in the sample x = 0.25, and characteristic of antiferromagnetic behaviors were observed. On the other hand, resistivity contributed to determining the insulating behavior of samples where x = 0.5 and x = 0.75. In contrast, at low sodium content (x = 0.25), a metal-insulator transition was observed with transition temperature near 105 K.","PeriodicalId":42183,"journal":{"name":"UIS Ingenierias","volume":" ","pages":""},"PeriodicalIF":0.3000,"publicationDate":"2021-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Un estudio de las propiedades estructurales, magnéticas y eléctricas de los compuestos Ba1-xNaxCoO3(x = 0.25, 0.5, 0.75)\",\"authors\":\"Carlos Augusto Estrada-Rodriguez, Lutiene Fernandes-Lopes, Rovan Fernandes-Lopes, Fabiano Mesquita, Águeda Maria Turatti, Jorge Luiz Pimentel-Junior, Santiago Sandoval-Gutiérrez, C. A. Parra Vargas\",\"doi\":\"10.18273/revuin.v20n4-2021010\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Cobaltite-like materials having metal-insulator transitions are relevant in the consumer electronics market. In this work, we present the structural, magnetic, and electrical properties of Ba1-xNaxCoO3 (with x= 0.25, 0.5, 0.75) cobaltite. All samples were synthesized using a solid-state reaction process. Their crystal structure was determined using X-ray diffraction (XRD) data by the Rietveld method, which showed that all the samples were crystallized in the orthorhombic space group C2221 (N.° 20). The microstructure of the sintered samples was characterized by scanning electron microscopy (SEM). The magnetic susceptibility measurements confirmed a paramagnetic behavior for x≥ 0.5 in the temperature range that was used. Likewise, a broad peak around 33 K in the sample x = 0.25, and characteristic of antiferromagnetic behaviors were observed. On the other hand, resistivity contributed to determining the insulating behavior of samples where x = 0.5 and x = 0.75. In contrast, at low sodium content (x = 0.25), a metal-insulator transition was observed with transition temperature near 105 K.\",\"PeriodicalId\":42183,\"journal\":{\"name\":\"UIS Ingenierias\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":0.3000,\"publicationDate\":\"2021-07-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"UIS Ingenierias\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.18273/revuin.v20n4-2021010\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENGINEERING, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"UIS Ingenierias","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.18273/revuin.v20n4-2021010","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, MULTIDISCIPLINARY","Score":null,"Total":0}
Un estudio de las propiedades estructurales, magnéticas y eléctricas de los compuestos Ba1-xNaxCoO3(x = 0.25, 0.5, 0.75)
Cobaltite-like materials having metal-insulator transitions are relevant in the consumer electronics market. In this work, we present the structural, magnetic, and electrical properties of Ba1-xNaxCoO3 (with x= 0.25, 0.5, 0.75) cobaltite. All samples were synthesized using a solid-state reaction process. Their crystal structure was determined using X-ray diffraction (XRD) data by the Rietveld method, which showed that all the samples were crystallized in the orthorhombic space group C2221 (N.° 20). The microstructure of the sintered samples was characterized by scanning electron microscopy (SEM). The magnetic susceptibility measurements confirmed a paramagnetic behavior for x≥ 0.5 in the temperature range that was used. Likewise, a broad peak around 33 K in the sample x = 0.25, and characteristic of antiferromagnetic behaviors were observed. On the other hand, resistivity contributed to determining the insulating behavior of samples where x = 0.5 and x = 0.75. In contrast, at low sodium content (x = 0.25), a metal-insulator transition was observed with transition temperature near 105 K.