Stability in ordered and icosahedral aluminium–transition metal alloys
- 1 March 1987
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine Letters
- Vol. 55 (3) , 123-127
- https://doi.org/10.1080/09500838708228743
Abstract
We present calculated electron state densities for A1T (T is a transition metal) compounds and icosahedral Al86T14 alloys which suggest that the relative stability of different short-range atomic arrangements varies inversely with the electron state density at the Fermi level. Using this argument, we show that the absence ofstable highly coordinated configurations is a necessary, but not sufficient, condition for the existence of icosahedral Al86T14 alloys.Keywords
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