Matviyishyn R. Interaction of erbium with transition metals (Co, Ni), lithium and p-elements of group IV (Si, Ge)

Isothermal sections of phase diagrams were constructed for the first time over the whole concentration range for the systems Er Co Si and Er Ni Si at 870 K, and Er Li Si and Er Li Ge at 470 K. The character of the interaction of components on some sections of the systems Er {Co,Ni} Li {Si,Ge} was established. The crystal structures of 22 compounds (6 binary, 10 ternary and 6 quaternary) were determined by single crystal method. The crystal structure of the compound ErLiSi was determined by powder method. A new structure type ErNi1-xLixGe (0.1?x?0.3) and Er11Ni1,6Li0,4Ge8 was discovered. Magnetic and electrical properties of the isostructural compounds of compositions RNi5Si3 and RCo5Si3, as well as magnetic properties of the compounds Er2CoSi2 and Er1-x(Ni0,818Si0,182)5+2x and of the alloys from solid solution based on Er2Co17 with the Si content up to 15 at.% and were measured for the first time.