Abstract
We present the study of magnetic and transport properties of Pb1−x−y−zMnxSnyEuzTe. AC magnetic susceptibility measurements as well as transport characterization were performed. The obtained results indicate that the presence of two types of magnetic ions influences the magnetic properties of the investigated IV–VI semimagnetic semiconductor. Qualitative analysis and possible mechanisms of the substantial dependence of the Curie temperature on the Eu content are presented. The most likely reason of the observed Curie temperature behaviour is a strong dependence of the location of a heavy mass Σ band upon the alloy composition. Theoretical calculations in frame of simple models confirm this point.
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