dc.creator | Bustos Garnica, Karol Yanilud | |
dc.creator | Cardona Cardona, Ramiro | |
dc.creator | Landinez Téllez, David Arsenio | |
dc.creator | Parra Vargas, Carlos Arturo | |
dc.creator | Roa Rojas, Jairo | |
dc.date.accessioned | 2018-09-06T14:31:18Z | |
dc.date.available | 2018-09-06T14:31:18Z | |
dc.date.created | 2018-09-06T14:31:18Z | |
dc.date.issued | 2018-02-04 | |
dc.identifier | Bustos Garnica, K. Y. y otros. (2018). Análisis cristalográfico, morfológico, eléctrico, óptico y magnético del nuevo material Dy2BiFeO6. Ciencia en Desarrollo, 9(1), 51-61. http://orcid.org/0000-0002-5080-8492. http://repositorio.uptc.edu.co/handle/001/2149. | |
dc.identifier | 2462-7658 | |
dc.identifier | http://repositorio.uptc.edu.co/handle/001/2149 | |
dc.identifier | http://orcid.org/0000-0002-5080-8492 | |
dc.description.abstract | We report structural analysis, surface morphology, magnetic ordering, dielectric response, optical feature and the electronic structure of the Dy2BiFeO6 novel complex perovskite. The samples were produced by the standard solid-state reaction recipe. Crystallographic analysis was performed by Rietveld refinement of experimental X-ray diffraction patterns. Results show that this material crystallizes in a perovskite with orthorhombic structure, which corresponds to the Pnma (#62) space group. From the Curie-Weiss fitting
on the curve of susceptibility as a function of temperature we establish that the ordering corresponds to a
paramagnetic-antiferromagnetic transition, with a Weiss temperature θ=-18,5 K, which is compatible with
the behavior of the inverse of susceptibility as a function of temperature, and a Néel temperatura TN=50,8
K. The Curie constant allowed for us to obtain an effective magnetic moment of 15,7 μB. The result of magnetization as a function of the applied field, measured at T=50 K, shows a magnetic hysteresis behavior
that corroborate the magnetic ordering present for this temperature value. Measurements of the dielectric
constant as a function of applied frequencies at room temperature give as a result a high relative dielectric
constant (ε=780). The reflectance curve as a function of the wavelength reveals the typical behavior of a
double perovskite-like material and permits to obtain the energy gap 2,74 eV, which is characteristic of a
semiconductor material. | |
dc.description.abstract | En este trabajo reportamos el análisis estructural, morfología superficial, ordenamiento magnético, respuesta
dieléctrica y característica óptica de la nueva perovskita compleja Dy2BiFeO6. Las muestras fueron producidas mediante reacción de estado sólido. El análisis cristalográfico fue realizado a través de refinamiento Rietveld de los patrones experimentales de rayos X. Los resultados muestran que este material
cristaliza en una perovskita ortorrómbica correspondiente al grupo espacial Pnma (#62). Por medio del ajuste de Curie-Weiss a la respuesta de la susceptibilidad magnética en función de la temperatura se estableció que el ordenamiento magnético se relaciona con una transición paramagnético-antiferromagnético con una temperatura de Weiss θ=-18,5 K, la cual es acorde con el comportamiento del inverso de la susceptibilidad
en función de la temperatura, y una temperatura de Néel TN=50,8 K. La constante de Curie permitió determinar un momento magnético efectivo de 15,7 μB. Medidas de magnetización en función del campo aplicado a T=50 K, muestran un débil comportamiento histerético, que corrobora el ordenamiento magnético presente a esa temperatura. Mediciones de la constante dieléctrica en función de la frecuencia aplicada a temperatura ambiente dan como resultado una alta constante dieléctrica relativa a bajas frecuencias (ε=780). La curva de reflectancia en función de la longitud de onda revela el comportamiento típico de un material de tipo perovskita doble y permite la obtención de la brecha de energía de 2,74 eV característico de un material semiconductor. | |
dc.language | spa | |
dc.publisher | Universidad Pedagógica y Tecnológica de Colombia | |
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dc.relation | Ciencia en Desarrollo;Volumen 9, número 1 (Enero-Junio 2018) | |
dc.rights | https://creativecommons.org/licenses/by-nc/4.0/ | |
dc.rights | info:eu-repo/semantics/openAccess | |
dc.rights | Atribución-NoComercial 4.0 Internacional (CC BY-NC 4.0) | |
dc.rights | http://purl.org/coar/access_right/c_abf2 | |
dc.rights | Copyright (c) 2018 Universidad Pedagógica y Tecnológica de Colombia | |
dc.source | https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/5976/pdf | |
dc.title | Análisis cristalográfico, morfológico, eléctrico, óptico y magnético del nuevo material Dy2BiFeO6 | |
dc.type | Artículo de revista | |