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dc.contributor.author | Zamora Alfonso, Ligia E. | - |
dc.date.accessioned | 2021-12-10T08:38:52Z | - |
dc.date.available | 2021-12-10T08:38:52Z | - |
dc.date.issued | 2020-09-29 | - |
dc.identifier.uri | https://repositorio.accefyn.org.co/handle/001/1228 | - |
dc.description.abstract | El sistema ZnO dopado con Fe presenta buenas propiedades como semiconductor magnético diluido para aplicaciones en espintrónica. En este artículo se hace una revisión de algunas propiedades estructurales y magnéticas del ZnO dopado con Fe. Inicialmente, se hace un resumen de los conceptos básicos para entender en qué consiste la espintrónica y sus posibles aplicaciones. Posteriormente, se presenta el estudio de dicho sistema mediante difracción de rayos X, espectroscopía Mössbauer y magnetometría de muestra vibrante en muestras obtenidas por aleamiento mecánico en diferentes condiciones de preparación. En la primera se aumentó la concentración de Fe de 3 a 10 % en un tiempo de molienda de 36 horas y una relación entre el peso de las bolas y el peso de los elementos (relación de peso bolas-polvo, RPB) de 15:1. En este caso se probó que hubo una concentración límite de Fe, aproximadamente de 5 %, que se diluyó dentro de la red del ZnO; el resto del Fe apareció segregado en la muestra. En la segunda condición se fijó la concentración de Fe en 10 % y se variaron las horas de molienda. Se encontró que después de 24 horas, la muestra se consolidó, pero el Fe no se diluyó completamente dentro de la red de ZnO. Por último, usando una concentración de 10 % en Fe y aumentando la RPB se encontró que todos los átomos de Fe se diluyeron dentro de la fase de ZnO y no quedaron segregados de Fe en la muestra, lo que se explica porque al aumentar la relación RPB aumenta la energía. | spa |
dc.description.abstract | The Fe-Doped ZnO system has good properties as a diluted magnetic semiconductor for spintronic applications. In this article, a review of some structural and magnetic properties of Fe-Doped ZnO is presented. Initially, a summary of the basic concepts is made to understand the spintronics concepts and their possible applications and, subsequently, the study of the Fe- Doped ZnO in samples obtained by mechanical alloy under different preparation conditions. Characterizations were made by means of X-ray diffractometry, Mössbauer spectroscopy, and vibrating sample magnetometry. The first preparation condition was an increase in the Fe concentration from 3 to 10 at % with 36 hours of milling time and a 15: 1 ball-to-powder weight ratio (BPR). In this case, there was a limited Fe concentration of approximately 5 % that was diluted into the ZnO matrix while the rest of Fe was segregated in the sample. For the second preparation condition, the Fe concentration was fixed at 10% and the milling time was varied. After 24 hours of milling, the sample was consolidated, but the Fe was not completely diluted into the ZnO matrix. Finally, using a 10% Fe concentration and increasing the BPR, all the Fe atoms were diluted in the ZnO phase without the presence of Fe segregates in the sample. | eng |
dc.format.mimetype | application/pdf | spa |
dc.language.iso | spa | spa |
dc.publisher | Academia Colombiana de Ciencias Exactas, Físicas y Naturales | spa |
dc.rights | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International | spa |
dc.rights.uri | https://creativecommons.org/licenses/by-nc/4.0/ | spa |
dc.source | Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales | spa |
dc.title | Estudio del semiconductor magnético ZnO dopado con Fe obtenido por aleamiento mecánico | spa |
dc.type | Artículo de revista | spa |
dcterms.audience | Estudiantes, Profesores, Comunidad científica colombiana | spa |
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dc.rights.accessrights | info:eu-repo/semantics/openAccess | spa |
dc.type.driver | info:eu-repo/semantics/article | spa |
dc.type.version | info:eu-repo/semantics/publishedVersion | spa |
dc.rights.creativecommons | Atribución-NoComercial 4.0 Internacional (CC BY-NC 4.0) | spa |
dc.identifier.doi | https://doi.org/10.18257/raccefyn.1130 | - |
dc.subject.proposal | Espintrónica | spa |
dc.subject.proposal | Spintronics | eng |
dc.subject.proposal | Semiconductores magnéticos diluidos | spa |
dc.subject.proposal | Diluted magnetic semiconductors | eng |
dc.subject.proposal | Magnetorresistencia gigante | spa |
dc.subject.proposal | Giant magnetoresistance | eng |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | spa |
dc.relation.ispartofjournal | Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales | spa |
dc.relation.citationvolume | 44 | spa |
dc.relation.citationstartpage | 716 | spa |
dc.relation.citationendpage | 728 | spa |
dc.publisher.place | Bogotá, Colombia | spa |
dc.contributor.corporatename | Academia Colombiana de Ciencias Exactas, Físicas y Naturales | spa |
dc.relation.citationissue | 172 | spa |
dc.type.content | DataPaper | spa |
dc.type.redcol | http://purl.org/redcol/resource_type/ART | spa |
oaire.accessrights | http://purl.org/coar/access_right/c_abf2 | spa |
oaire.version | http://purl.org/coar/version/c_970fb48d4fbd8a85 | spa |
Appears in Collections: | BA. Revista de la Academia Colombiana de Ciencias Exactas Físicas y Naturales |
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