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X-ray powder diffraction study of the semiconducting alloy Cu2Cd0.5Mn0.5GeSe4

✍ Scribed by G. E. Delgado; E. Quintero; R. Tovar; M. Quintero

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
126 KB
Volume
39
Category
Article
ISSN
0232-1300

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✦ Synopsis

The structure of the semiconducting alloy Cu 2 Cd 0.5 Mn 0.5 GeSe 4 was refined from an X-ray powder diffraction pattern using the Rietveld method. The present alloy crystallizes in the wurtz-stannite structure, space group Pmn2 1 (NΒΊ 31), and unit cell parameters values of a = 8.0253(2) Γ…, b = 6.8591(2) Γ…, c = 6.5734(2) Γ… and V = 361.84(2) Γ… 3 . The structure exhibits a three-dimensional arrangement of slightly distorted CuSe 4 , Cd(Mn)Se 4 and GeSe 4 tetrahedras connected by corners.

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