Abstract

AbstractThe phase Fe1‐xTe (x=0.38) was obtained by short‐distance chemical transport. The compound adopts a NiAs‐like crystal structure, which exhibits intricate defect ordering. The substructure is described in a small unit cell (space group P m1, a=3.7892(1) Å, c=5.6896(2) Å, Z=2) with iron deficiency in every second layer along [001]. Single crystal diffraction data evidence a 2a×2a×2c unit cell. This atomic arrangement is described by means of a 3D superstructure and by a 3+1D model using a modulated 2a×2a×c supercell, respectively.

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