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Structure Refinement of the Semiconducting Compound Cu3TaS4 from X-Ray Powder Diffraction Data
被引:15
作者:
Delgado, G. E.
[1
]
Contreras, J. E.
[1
]
Mora, A. J.
[1
]
Duran, S.
[2
]
Munoz, M.
[2
]
Grima-Gallardo, P.
[2
]
机构:
[1] Univ Los Andes, Fac Ciencias, Dept Quim, Lab Cristalog, Merida 5101, Venezuela
[2] Univ Los Andes, Fac Ciencias, Ctr Estudios Semicond, Dept Fis, Merida 5101, Venezuela
关键词:
TERNARY;
RELIABILITY;
CRITERION;
SE;
D O I:
10.12693/APhysPolA.120.468
中图分类号:
O4 [物理学];
学科分类号:
0702 ;
摘要:
The ternary compound Cu3TaS4 has been investigated by means of X-ray powder diffraction and its structure has been refined by the Rietveld method. This compound is isostructural with the sulvanite mineral Cu3VS4, and crystallizes in the cubic P (4) over bar 3m space group (No. 215), Z = 1, with unit cell parameters a = 5.5145(1) angstrom and V = 167.70(1) angstrom(3). The refinement of 14 instrumental and structural parameters converged to R-p = 4.4%, R-wp = 6.8%, R-exp= 5.5% and S = 1.2 for 4501 step intensities and 33 independent reflections.
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页码:468 / 472
页数:5
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