Crystal structure, Raman scattering and magnetic properties of CuCr2−xZrxSe4 and CuCr2−xSnxSe4 selenospinels

[Display omitted] •CuCr2−xZrxSe4 and CuCr2−xSnxSe4 belong to the family of spinel-type compounds.•Analysis of Raman spectral features of main peaks from CuCr2−xMxSe4 (M = Zr, Sn).•Ferromagnetic and spin-glass behavior. Selenospinels, CuCr2−xMxSe4 (M = Zr and Sn), were synthesized via conventional so...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2018-06, Vol.456, p.160-166
Main Authors: Pinto, C., Galdámez, A., Barahona, P., Moris, S., Peña, O.
Format: Article
Language:English
Subjects:
Chemical Sciences
Crystal structure
Magnetic properties
Raman spectroscopy
Selenospinel
Online Access:Get full text
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Summary:[Display omitted] •CuCr2−xZrxSe4 and CuCr2−xSnxSe4 belong to the family of spinel-type compounds.•Analysis of Raman spectral features of main peaks from CuCr2−xMxSe4 (M = Zr, Sn).•Ferromagnetic and spin-glass behavior. Selenospinels, CuCr2−xMxSe4 (M = Zr and Sn), were synthesized via conventional solid-state reactions. The crystal structure of CuCr1.5Sn0.5Se4, CuCr1.7Sn0.3Se4, CuCr1.5Zr0.5Se4, and CuCr1.8Zr0.2Se4 were determined using single-crystal X-ray diffraction. All the phases crystallized in a cubic spinel-type structure. The chemical compositions of the single-crystals were examined using energy-dispersive X-ray analysis (EDS). Powder X-ray diffraction patterns of CuCr1.3Sn0.7Se4 and CuCr1.7Sn0.3Se4 were consistent with phases belonging to the Fd3¯m Space group. An analysis of the vibrational properties on the single-crystals was performed using Raman scattering measurements. The magnetic properties showed a spin glass behavior with increasing Sn content and ferromagnetic order for CuCr1.7Sn0.3Se4.
ISSN:0304-8853
1873-4766
DOI:10.1016/j.jmmm.2018.02.023