Synthesis, structural characterization and differential thermal analysis of the quaternary compound Ag2MnSnS4 | Zendy

Gerzón E. Delgado | Zendy; N. Sierralta | Zendy; M. Quintero | Zendy; E. Quintero | Zendy; E. Moreno | Zendy; Jesús Alberto Flores Cruz | Zendy; Carlos Rincón | Zendy

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Synthesis, structural characterization and differential thermal analysis of the quaternary compound Ag2MnSnS4

Author(s) -

Gerzón E. Delgado,

N. Sierralta,

M. Quintero,

E. Quintero,

E. Moreno,

Jesús Alberto Flores Cruz,

Carlos Rincón

Publication year - 2018

Publication title -

revista mexicana de física

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.181

H-Index - 25

eISSN - 2683-2224

pISSN - 0035-001X

DOI - 10.31349/revmexfis.64.216

Subject(s) - orthorhombic crystal system , wurtzite crystal structure , materials science , rietveld refinement , crystallography , crystal structure , differential scanning calorimetry , chalcogenide , powder diffraction , differential thermal analysis , diffraction , zinc , chemistry , thermodynamics , metallurgy , physics , optics

The quaternary chalcogenide compound Ag2MnSnS4 belonging to the system I2-II-IV-VI4 and synthesized by the melt and anneal technique, was characterized by Rietveld refinement of the powder X-ray diffraction data and differential thermal analysis (DTA). It was found that nS4 crystallizes in the orthorhombic space group Pmn21, with unit cell parameters a = 8:1705(5) A, b = 6:9413(5) A, c = 6:6532(5) A, and V = 377:33(5) A3, in a wurtzite-stannite structure. The DTA indicates that this compound melts at 790°C and that the phase relations which occurs in the material would be: α ➝ α + α1 ➝ α1 ➝ α1 + β ➝ β ➝ 1 + L ➝ L, were α is the orthorhombic wurtzite-stannite Pmn21 structure; α1 is a high temperature modification; and β and β1 are the zinc-blende structure and its high-temperature modification, respectively.

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