Laves phases: superstructures induced by coloring and distortions

2023/06/19 by Elias C. J. Gießelmann, Rainer Pöttgen, Oliver Janka · 1 citation
Chemistry · Materials Science · Physics and Astronomy · #Inorganic Chemistry and Materials #Iron-based superconductors research #Rare-earth and actinide compounds

paper · pdf · doi:10.1002/zaac.202300109

openalex publication_date 2023/06/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Abstract The structural chemistry of Laves phases, especially with respect to their superstructures induced by coloring and distortions is discussed. Starting from the three classical Laves phases MgCu 2 , MgZn 2 and MgNi 2 , the more complex Komura phases are derived. Different possibilities of their description are summarized. In the second part, the superstructures are discussed based on their respective prototypes. The crystal chemical relationships are illustrated based on group‐subgroup descriptions using the Bärnighausen formalism.

Citations

• Phase Stability in the Systems AeAl2-xMgx (Ae = Ca, Sr, Ba): Electron Concentration and Size Controlled Variations on the Laves Phase Structural Theme
• High-pressure modifications of CaZn2, SrZn2, SrAl2, and BaAl2: Implications for Laves phase structural trends

Cited by

• Hydrogen diffusion in TiCr₂H_x Laves phases: A combined ab initio and machine-learning-potential study

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