Investigation of intermetallic phase diagrams, synthesis and crystal growth of i-QCs and ACs at ambient pressure

Research group: Cesar Pay Gómez.

Ternary systems, like RE-TM-Tt (RE=Lanthanides, TM=d-block elements,Tt = p-block elements), will be systematically investigated for new i-QCs and ACs. These systems can be exploited for studying thermodynamic relations and phase stability through melt-growth of single crystals. The compositional and temperature windows of formation of new phases can be screened by thermal analysis (DTA and DSC) and high temperature powder XRD experiments and the identified formation conditions subsequently utilized for targeted melt-growth of (quasi) crystalline samples and their isolation by melt-centrifugation. The thermodynamic stability of isolated products will be examined by thermal analysis and HT-PXRD.

The goal of this project line is to increase the number of RE-containing i-QCs and ACs through systematic phase diagram analysis. Within this project line falls also the synthesis of known RE i-QCs (i.e. i-RE-Cd) and ACs for investigating pressure-induced phase and property changes.