The new P-chalcopyrite compound Cu 2 FeIn 2 Se 5 ; synthesis, thermal analysis, and crystal structure analysis by X-ray powder diffraction



Document title: The new P-chalcopyrite compound Cu 2 FeIn 2 Se 5 ; synthesis, thermal analysis, and crystal structure analysis by X-ray powder diffraction
Journal: Revista mexicana de física
Database: PERIÓDICA
System number: 000446973
ISSN: 0035-001X
Authors: 1
1
2
3
3
Institutions: 1Universidad de Los Andes, Facultad de Ciencias, Mérida. Venezuela
2Duquesne University, Pittsburgh, Pensilvania. Estados Unidos de América
3Universidad de Antofagasta, Facultad de Ciencias Básicas, Antofagasta. Chile
Year:
Season: Ene-Feb
Volumen: 67
Number: 1
Pages: 18-24
Country: México
Language: Inglés
Document type: Artículo
Approach: Analítico, teórico
English abstract The Cu2FeIn2Se5alloy, belonging to the system (CuInSe2)1-x (FeSe)x with x = 1/3, was synthesized by the melt and annealing technique. The differential thermal analysis (DTA) indicates that this compound melts at 1017 K. The crystal structure of this new quaternary compound was established using powder X-ray diffraction. Cation distribution analysis indicates that this material crystallizes in a P-chalcopyrite structure, space group P 4 ¯2c (No112), with unit cell parameters α = 6.1852(2) Å, c = 12.3633(9) Å, V= 472.98(4) Å3. Cu2FeIn2Se5is a new adamantane type compound derivative of the sphalerite structure, and consists of a three-dimensional arrangement of distorted CuSe4, FeSe4, and InSe4 tetrahedral connected by common faces
Disciplines: Física y astronomía
Keyword: Física de materia condensada,
Estructura de cristal,
Difracción de rayos X en polvo,
Refinamiento de Rietveld,
P-calcopirita,
Síntesis química,
Análisis de diferencias térmicas,
Semiconductores
Keyword: Condensed matter physics,
Crystal structure,
X-ray powder diffraction,
Rietveld refinement,
P-chalcopyrite,
Chemical synthesis,
Differential thermal analysis,
Semiconductors
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