Interaction between the components in Tm-Cr-Ge system at 1070 K


  • L. Romaka Ivan Franko National University of Lviv, Lviv, Ukraine
  • Yu. Stadnyk Ivan Franko National University of Lviv, Lviv, Ukraine
  • V.V. Romaka Institute for Solid State Research, IFW-Dresden, Dresden, Germany
  • M. Konyk Ivan Franko National University of Lviv, Lviv, Ukraine



intermetallics, ternary system, phase equilibria, crystal structure


The phase equilibrium diagram of the Tm–Cr–Ge ternary system was constructed at a temperature 1070 K based on the results of X-ray phase, microstructural analyzes and energy-dispersive X-ray spectroscopy in the whole concentration range. At the temperature of investigation, two new ternary compounds are realized in the system: TmCr6Ge6 (SmMn6Sn6 structure type, space group P6/mmm, a=0.51506(1), c=0.82645(2) nm) and Tm4Cr4Ge7 (Zr4Co4Ge7 structure type, space group I4/mmm, а=1.39005(9), с=0.54441(1) nm). Inclusion of Cr atoms in the structure of the binary germanide TmGe2 (structure type ZrSi2) up to 10 at. % Cr leads to the formation of a solid solution TmCrxGe2 (x = 0-0.33).


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How to Cite

Romaka, L., Stadnyk, Y., Romaka, V., & Konyk, M. (2022). Interaction between the components in Tm-Cr-Ge system at 1070 K. Physics and Chemistry of Solid State, 23(4), 633–639.



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