Synthesis and Characterization of Topological crystalline insulators in the SnTe material class

k bakalářské práci - Anglický jazyk Synthesis and Characterization of Topological crystalline insulators in the SnTe material class Jakub Chovanec July 21, 2017 In this work we prepared series of single crystal samples PbxSn1−xTe and PbxSn1−xSe. These materials are quite popular last few years, after they were predicted and then char- acterized by [4] as topological crystaline insulators (TCI). TCI is a quantum state of crys- tals, in which symetry causes existance of the metal states on the surface. Samples had been prepared from molten flux and by using Bridgman method. Homogenity and pu- rity of single crystals had been determined. Compounds PbxSn1−xTe and PbxSn1−xSe crystalized in cubical structure and were defined as Fm-3m space group, existance of PbxSn1−xSe in Pnma space group were confirmed.