Raman characterization of CuIrSnX4 normal-spinel systems
Author
dc.contributor.author
Barahona, P.
Author
dc.contributor.author
Galdámez Silva, Antonio
Author
dc.contributor.author
Valencia Gálvez, P.
Author
dc.contributor.author
Moris, S
Admission date
dc.date.accessioned
2020-10-29T12:47:02Z
Available date
dc.date.available
2020-10-29T12:47:02Z
Publication date
dc.date.issued
2020
Cita de ítem
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Chalcogenide Letters Vol. 17, No. 8, August 2020, p. 411 - 416
es_ES
Identifier
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1584-8663
Identifier
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https://repositorio.uchile.cl/handle/2250/177462
Abstract
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CuIrSnS4, CuIrSnSe4 and CuIrSnS2Se2 were synthetized by a solid-state reaction at 700 degrees C. Powder X-ray diffraction patterns were consistent with normal spinel-type structure. Scanning electron microscopy (SEM-EDS) images showed a uniform distribution of Cu-Ir-Sn-S and Se atoms in the samples. Raman scattering analysis revealed A(1g), E-g, and three F-2g vibrational modes in spectra (cubic Fd (3) over barm space-group). Signal at similar to 320 cm(-1) corresponded to the A(1g) mode, while the band at similar to 230 cm(-1) was assigned to the F-2g(2) mode due to the asymmetric stretching of the Cu-X bond. Raman spectra were compared with those of the previously published thio- and selenospinels.