Investigation of Al and Mg occupied densities of states of Al-Mg-Zn alloys

In this paper we report first results on the investigation of the electronic distributions in a series of Al-Mg-Zn alloys by means of X-ray emission spectroscopy. This technique was selected as it allows to probe separately partial densities of states around each constituent in a compound. Differences are observed in the shapes and energy extent of the partial spectral curves from quasicristalline to 1/1- and 2/1-approximants in this system. This indicates modifications in the electronic interactions according to the atomic structure of the specimen. (C) 2000 Elsevier Science B.V. All rights reserved.