Bibliographic Details
| Title: |
SYNTHESIS, X-RAY DIFFRACTION AND MAGNETIC MEASUREMENTS OF Cu(Ni,Co)2InS4 ALLOYS: SUPERCONDUCTOR BEHAVIOR OF CuCo2InS4. |
| Alternate Title: |
SINTESIS, DIFFRACCIÓN DE RAYOS X Y MEDIDAS MAGNETICAS DE ALEACIONES DE Cu(Ni,Co)2InS4: COMPORTAMIENTO SUPERCONDUCTOR DE CuCo2InS4. |
| Authors: |
Grima-Gallardo, Pedro1,2,3 peg1952@gmail.com, Ernesto Delgado, Gerzon4, Pérez-Cappé, Eduardo5, Ann Aitken, Jennifer6, Prakash Rai, Dybia7 |
| Source: |
LatinAmerican Journal of Metallurgy & Materials / Revista Latinoamericana de Metalurgia y Materiales (RLMM). 2020, Vol. 40 Issue 2, p131-141. 11p. |
| Subjects: |
Superconducting quantum interference devices, Rietveld refinement, Lattice constants, X-ray diffraction, Crystal structure, Polycrystalline semiconductors, Polycrystalline silicon |
| Abstract (English): |
Polycrystalline samples of CuCo2InS4 and CuNi2InS4 alloys were prepared by the melt and anneal method. The products were characterized by X-Ray Diffraction (XRD) and Superconducting Quantum Interference Device (SQUID) techniques. From XRD it was found that both alloys, CuCo2InS4 and CuNi2InS4, are composed by two orthorhombic phases. In the case of CuCo2InS4, the crystal structure of the main phase has been refining (Rietveld method) as Pmn21 (N 31) with lattice parameters a=8.100(1) Å, b=7.116(8) Å and c=6.391(6) Å; for CuNi2InS4, the lattice parameters of the two phases were indexed (DICVOL 06). With respect to the magnetic behavior, CuCo2InS4 is a superconductor with Tc=3.2 K whereas CuNi2InS4 is a high temperature (Tc ~ 380 K) weak ferromagnetic with abnormal temperature dependence of the coercitive field. [ABSTRACT FROM AUTHOR] |
| Abstract (Spanish): |
Las muestras policristalinas de las aleaciones CuCo2InS4 y CuNi2InS4 se prepararon mediante el método de fusión y recocido. Los productos se caracterizaron por las técnicas de difracción de rayos X (DRX) y dispositivo de interferencia cuántica superconductora (DIQUS). De los resultados de DRX se encontró que ambas aleaciones, CuCo2InS4 y CuNi2InS4, están compuestas por dos fases ortorrómbicas. En el caso de CuCo2InS4, utilizando el método de refinamiento Rietveld, se pudo determinar que la estructura cristalina de la fase principal pertenece al grupo espacial Pmn21 (N 31), con parámetros de la red a=8.100(1) Å, b=7.116(8) Å and c=6.391(6) Å; para CuNi2InS4, se indexaron los parámetros de las redes de ambas fases (principal y secundaria). Con respecto al comportamiento magnético, CuCo2InS4 es superconductor con Tc=3.2 K, mientras que CuNi2InS4 es un ferromagnético débil con Tc ~380 K con un comportamiento anómalo del campo coercitivo con la temperatura. [ABSTRACT FROM AUTHOR] |
|
Copyright of LatinAmerican Journal of Metallurgy & Materials / Revista Latinoamericana de Metalurgia y Materiales (RLMM) is the property of Universidad Simon Bolivar, Departmento de Ciencia de los Materiales and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| Database: |
Engineering Source |
