Abstract

This work describes the synthesis and the structural characterization of the La3.5-xBa4.5+x-yCayCu8O18 (0.2<x<0.4 and 0.3<y<0.5) systems, obtained by the conventional solid-state reaction method. The samples were characterized by X-ray diffraction comparing the main signals of the experimental and theoretical diffractograms with the PCW software, revealed the obtaining of an orthorhombic structure with space group Pmm2 (25) and unit cell volume V=465.5370Å3. The analysis by Raman spectroscopy allows to determine the main modes of vibration of the different bonds that are formed between the atoms in the synthesized perovskite structure.

Details

Title
Structural properties of La3.5-xBa4.5+x-yCayCu8O18 system (0.2
Author
Pérez Díaz, L A 1 ; Cruz Pacheco, A F 1 ; Gómez Cuaspud, J A 1 ; Parra Vargas, C A 1 ; Ortiz Otalora, C A 1 

 Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia 
Publication year
2017
Publication date
Dec 2017
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2574426570
Copyright
© 2017. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.