Abstract

SALAS, Menjamin et al. PRESSURE DEPENDENCE OF RAMAN-ACTIVE MODE FREQUENCIES IN SULVANITE Cu3NbS4 TERNARY COMPOUNDDEPENDENCIA CON LA PRESIÓN DE LAS FRECUENCIAS DE LOS MODOS RAMAN ACTIVOS DEL COMPUESTO TERNARIO DE CU3NBS4. . Rev. LatinAm. Metal. Mater. [online]. 2014, vol.34, n.1, pp.86-91. ISSN 0255-6952.

Pressure dependence of Raman-active mode frequencies and linewidths in Cu3NbS4 ternary compound has been investigated up to 30 Kb (at room temperature) using focalized micro-Raman technique in a diamond anvil high pressure cell. Seven Raman-active modes frequencies were clearly observed in the pressure range studied and the variation of their respective Raman shift frequency as a function of pressure were given. A structural phase transition at 25 ± 5 Kb previously reported in literature was confirmed.

Keywords : Cu3NbS4; alloys; x-ray diffraction; scanning electron microscopy; raman scattering..

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