Symmetry-Induced Hybridization in Hexagonal and Zinc-Blende CrTe Crystals

M. Kuzma University of Rzeszów, Faculty of Mathematics and Natural Sciences, S. Pigonia 1, 35-959 Rzeszów, Poland

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Transition metal chalcogenides of a zinc-blende structure are theoretically predicted to be half metallic and, therefore, they are interesting for spintronic applications. However, the ground state of these compounds is hexagonal, of NiAs type, whereas the cubic phase is a metastable one. Here, we investigate the Cr-Te bondings of both phases of Cr-Te from point of view of symmetry. The hybridization in octahedral and tetrahedral lattice is studied for both structures. The fiber bundle presentation of the hybridization problem is also addressed.

DOI: 10.12693/APhysPolA.128.185 PACS numbers: 61.50.Ah, 75.50.Cc, 75.50.Pp