Icosahedral short-range order in amorphous alloys |
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| Authors: | Luo W K Sheng H W Alamgir F M Bai J M He J H Ma E |
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| Institution: | Department of Materials Science and Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, USA. |
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| Abstract: | We have characterized the icosahedral short-range order in amorphous solids using local environment probes. Such topological local order is pronounced even in an amorphous alloy that does not form quasicrystalline phases upon crystallization, as demonstrated by the extended x-ray absorption fine structure and x-ray absorption near-edge structure of a Ni-Ag amorphous alloy analyzed through reverse Monte Carlo simulations. |
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