Semiconductors of the type MeIIMeIVS3

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Abstract

Ternary compounds of the type MeIIMeIVS3 with the elements MeII = Sn, Pb and MeIV = Ge, Sn form two isotypic groups, with orthorhombic (MeIISnIVS3) and monoclinic (MeIIGeIVS3) symmetry respectively. Single crystals of sufficiently large size have been prepared to examine some basic physical properties. Results on electrical conductivity, and optical absorption measurements at the fundamental electronic gap are reported. They will be discussed with respect to the crystal structures.

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