Cu2Mn1xCoxSnS4: Novel kesterite type solid solutions
Autor
López-Vergara, Fernanda
Galdámez, Antonio
Manríquez, Victor
Barahona-Huenchumil, Patricia
Peña, Octavio
Fecha
2013Resumen
A new family of Cu2Mn1xCoxSnS4 chalcogenides has been synthesized by conventional solid-state reactions at 850 1C. The reactions products were characterized by powder X-ray diffraction (XRD), energy-dispersive X-ray analysis (SEM-EDS), Raman spectroscopy and magnetic susceptibility. The crystal structures of two members of the solid solution series Cu2Mn0.4Co0.6SnS4 and Cu2Mn0.2Co0.8SnS4 have been determined by single-crystal X-ray diffraction. Both phases crystallize in the tetragonal kesterite-type structure (space group ¨ I4). The distortions of the tetrahedral volume of Cu2Mn0.4
Co0.6SnS4 and Cu2Mn0.2Co0.8SnS4 were calculated and compared with the corresponding differences in the Cu2MnSnS4 (stannite-type) end-member. The compounds show nearly the same Raman spectral features. Temperature-dependent magnetization measurements (ZFC/FC) and high-temperature susceptibility indicate that these solid solutions are antiferromagnetic.
Fuente
Journal of Solid State Chemistry, 198, 386-391Link de Acceso
Click aquí para ver el documentoIdentificador DOI
doi.org/10.1016/j.jssc.2012.10.026Colecciones
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