Abstract

The crystal structure of the chalcogenide compounds CuCo2InTe4 and CuNi2InTe4, two new members of the I-II2-III-VI4 family, were characterized by Rietveld refinement using X-ray powder diffraction data. Both materials crystallize in the tetragonal space group I4 2m (No. 121), Z = 2, with a stannite-type structure, with the binaries CoTe and NiTe as secondary phases.

Highlights

  • Diluted magnetic semiconductors (DMS) are of great interest because of their peculiar magnetic and magnetooptical properties arising from the presence of magnetic ions in the lattice[1]

  • The DMS materials more frequently studied are alloys obtained from the tetrahedrally coordinated derivatives of the II-VI semiconductor family[2]. One of these derivative families are the quaternary semiconductors with formula I-II2-III-VI4 and I2-II-IV-VI4 which belong to the normal compound of fourth derivatives of the II-VI binary semiconductors with three types of cations[3], and fulfil the rules of adamantane compound formation[2,3]

  • It has been of interest to carry out a systematic study of the crystal structure of quaternary diamond-like families13-16, . 23-26 in this work we report the X-ray powder diffraction analysis and crystal structure of the quaternary compounds CuCo2InTe4 and CuNi2InTe4, two new members of the I-II2-III-VI4 family, which crystallize with a stannite structure

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Summary

Introduction

Diluted magnetic semiconductors (DMS) are of great interest because of their peculiar magnetic and magnetooptical properties arising from the presence of magnetic ions in the lattice[1]. The DMS materials more frequently studied are alloys obtained from the tetrahedrally coordinated derivatives of the II-VI semiconductor family[2] One of these derivative families are the quaternary semiconductors with formula I-II2-III-VI4 and I2-II-IV-VI4 which belong to the normal compound of fourth derivatives of the II-VI binary semiconductors with three types of cations[3], and fulfil the rules of adamantane compound formation[2,3]. According to these rules, the cation substitution is performed in such a way that an average number of four valence electrons per atomic site and a value eight for the ratio valence electrons to anions is maintained[2]. It has been of interest to carry out a systematic study of the crystal structure of quaternary diamond-like families13-16, . 23-26 in this work we report the X-ray powder diffraction analysis and crystal structure of the quaternary compounds CuCo2InTe4 and CuNi2InTe4, two new members of the I-II2-III-VI4 family, which crystallize with a stannite structure

Synthesis
X-ray powder diffraction
Results and Discussion
Full Text
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