Crystal structure of the quaternary compound CuTa2InTe4 from X-ray powder diffraction

Synthesis and Crystal Structure of Three New Quaternary Compounds in the system Cu-Mn-III-Se3 (III = Al, Ga, In)

“…These materials crystallize with tetragonal symmetry in the space group I4 2d (N°122), and the addition of a Fe-Se binary compound produces alloys of the type (Cu-IIISe 2 ) 1-x (FeSe) x 2 . Some previous results on the formation, structural characterization, thermal and magnetic properties on these alloys with compositions Cu-Fe-III-Se 3 (x = ½), Cu-Fe 2 -III-Se 4 (x = ⅔) and Cu 2 -Fe-III-Se 5 (x = ⅓) have been reported [3][4][5][6][7][8][9][10][11][12][13][14][15] . All these phases fulfill the rules of formation of adamantane compounds 2 and belong to the normal semiconductor compound families of the third, fourth and fifth-order derivatives of the II-VI binary semiconductors, respectively 16 .…”

Structural Characterization of Two New Quaternary Chalcogenides: CuCo2InTe4 and CuNi2InTe4

“…Structural studies carried out on some members of this family indicate that they crystallize in a sphalerite derivative structure (stannite) with tetragonal space group I 4 2m (No. 121) 11 , or in a wurtzite derivative structure (wurtzite- In recent years, it has been of interest to carry out a systematic study of the crystal structure of quaternary diamond-like families [13][14][15][16][23][24][25][26] . Hence, in this work we report the X-ray powder diffraction analysis and crystal structure of the quaternary compounds CuCo 2 InTe 4 and CuNi 2 InTe 4 , two new members of the I-II 2 -III-VI 4 family, which crystallize with a stannite structure.…”

Synthesis and crystal structure of the quaternary compound AgFe2GaTe4

“…A revision of the diffraction lines of the main phase taking into account the sample composition, unit cell parameters as well as the body center cell suggested that this material is isostructural with the stannite-type compound, which crystallize in the tetragonal space group I-42m (Nº 121) [11]. It should be mentioned that a Rietveld refinement was performed in the I-4 (Nº 82) space group but did not produce a chemically sound structure, discarding a kesterite structure.…”

“…In recent years, it has been of interest to carry out a systematic study of the crystal structure of quaternary diamond-like families [11][12][18][19][20][21]. Hence, here we report herein the structural characterization of a new quaternary compound, AgFe 2 GaTe 4 , using the Rietveld method from X-ray powder diffraction data.…”

“…From the crystallographic point of view, two different structure have been reported for this quaternary family of compounds; a sphalerite derivative structure (stannite, tetragonal space group I-42m) in CuFe 2 InSe 4 [11] and CuFe 2 AlSe 4 , CuFe 2 GaSe 4 [12] and a wurtzite derivative structure (wurtzstannite, orthorhombic space group Pmn2 1 ) in AgCd 2 GaS 4 [13], AgCd 2 GaSe 4 [14], Ag 1-X Cu X Cd 2 GaS 4 [15], AgCd 2 Ga 1-X In X S 4 [16] and AgCd 2-X Mn X GaS 4 [17].…”