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The (CuGaSe 2 ) 1− x (MgSe) x alloy system (0 ≤ x ≤ 0.5): X‐ray diffraction, energy dispersive spectrometry and differential thermal analysis
Author(s) -
Grima Gallardo P.,
Muñoz M.,
Delgado G. E.,
Briceño J. M.,
Ruiz J.
Publication year - 2004
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200302010
Subject(s) - alloy , x ray crystallography , diffraction , x ray , lattice constant , chalcopyrite , crystallography , analytical chemistry (journal) , lattice (music) , solid solution , materials science , chemistry , copper , metallurgy , physics , optics , chromatography , acoustics
The (CuGaSe 2 ) 1− x (MgSe) x alloy system (0 < x ≤ 0.5) was investigated using X‐ray powder diffraction, energy dispersion spectrometry and differential thermal analysis. The solubility of MgSe in CuGaSe 2 was found to be nearly complete for all the compositions studied, although traces of MgSe appear as a secondary phase at x ≥ 0.15. All the alloys showed the chalcopyrite structure and the lattice parameters of the unit cell do not follow a linear behavior but showed a soft local maximum at x ∼ 0.15. In the single‐phase field, the increasing behavior of the lattice parameters can be reproduced using an extension for quaternary alloys of Jaffe and Zunger's model for chalcopyrites. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)