Characteristic Ordering in Liquid Phase-Change Materials


  • M.W. and C.S. thank the EU for financial support under proposal IST-3-017406 (CAMELS), FAME NoE + FNRS + EU (access program), and LLB. Skillful sample preparations as well as valuable discussions with R. Ceolin are gratefully acknowledged.


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Ternary liquids containing approximately 50% Te are studied using neuron scattering. The local environment is quantified, based on the analysis of the total scattering function. In these tellurium-based alloys, a tetrahedral local order dominates for liquids with average number of valence electrons between 4.0 and 4.25, while a transition to octahedral ordering is induced for larger numbers of valence electrons.