Solid solution formation in the systems CuMIIIX2-AgMIIIX2 where MIII=Al,Ga, In and X2=S,Se |
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Authors: | M Robbins JC Phillips VG Lambrecht |
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Institution: | Bell Laboratories, Murray Hill, N.J. 07974, U.S.A. |
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Abstract: | A study of solid solution formation in the systems CuAlX2-AgAlX2, CuGaX2-AgGaX2 and CuInX2-AgInX2, where X=S, Se, has shown that when MIII=Al and Ga, CuMIIIX2 and AgMIIIX2 were not completely miscible. The CuInX2-AgInX2 system, however, showed complete solid solubility. The limits of solid solubility are explained in terms of the c/a ratio, and the internal atomic coordinate u. The lattice constant a is a linear function of composition, while c bows upwards. This behavior is also discussed in terms of trends in 2-c/a. |
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