Local atomic and electronic structure of the Fe dopants in AlN:Fe nanorods

V. L. Mazalova, Y. V. Zubavichus, D. S. Chub, A. A. Guda, X. H. Ji, Shu Ping Lau, A. V. Soldatov

Research output: Journal article publicationConference articleAcademic researchpeer-review

Abstract

Fe-doped AlN nanorods were studied by means of x-ray absorption spectroscopy above the Fe K- and L2,3- edges. Theoretical simulations of the x-ray absorption spectra show that Fe atoms mainly substitute Al. A minor fraction of Fe interstitials or Fe-Al-N ternary alloy can be identified as well. Bader's AIM analysis predicts that neutral substitutional FeAl defect is in 2+charge state, though Al in pure AlN is in 3+charge state. Fe L2,3absorption spectra and photoluminescence data indicate the coexistence of Fe2+/Fe3+in AlN:Fe nanorods so different charge states of substitutional FeAlshould co-exist.
Original languageEnglish
Article number012112
JournalJournal of Physics: Conference Series
Volume430
Issue number1
DOIs
Publication statusPublished - 1 Jan 2013
Event15th International Conference on X-Ray Absorption Fine Structure, XAFS 2012 - Beijing, China
Duration: 22 Jul 201228 Jul 2012

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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