The atomic structure of alloy surfaces and surface alloys

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Abstract
This paper reviews the available data about the structure of bimetallic surfaces where the constituent elements are intermixed at atomic level. These systems include the surface of bulk alloys ('alloy surfaces') and systems resulting from diffusion at metal-metal interfaces ('surface alloys'). All cases where a complete surface crystallographic determination exists are listed and discussed, as well as selected cases where the structural data are not complete but can lead to a model of the atomic structure.