Structural properties of sulfides chalcogenides manganese substituted by elements with variable valency

Abstract

Abstract The structure and transport of YbXMn1-XS and TmXMn1-XS sulfides (0.05≤X≤0.2) was studied in the temperature range 80-500K. The temperature ranges of local deformations and a decrease of the thermal expansion coefficient with increasing concentration X caused of anomalous compressibility in the magnetically ordered region are determined for a system doped with ytterbium. Pinning temperatures of lattice polarons are established, which are accompanied by lattice deformation and IR mode condensation for a system doped with thulium.