Structural Influence on the Magnetic and Electronic Properties of Annealed Fe/Al Multilayers

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Abstract:

Temperature dependent magnetic and electronic properties of electron beam evaporated Fe/Al multilayer samples (MLS) with an average composition of Fe0.70A10.30 (MLS-A) and Fe0.50Al0.50 (MLS-B) have been investigated. A ferromagnetic behaviour in MLS-A and nonmagnetic behaviour in MLS-B is obtained after annealing the multilayers at 400 °C. The different magnetic behaviours can be interpreted in terms of constant increase of Fe-3d and Al-3sp hybridization accompanied by an increased de-localization of the d-electrons participating in the strong bonding of Fe with Al leading to formation of different Fe–Al phases (Fe3Al in MLS-A) and (FeAl in MLS-B) as suggested from valence band photoemission and X-ray diffraction measurements.

Keywords: ANNEALED; HYBRIDIZATION; VALANCE BAND

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2008.AN47

Publication date: August 1, 2008

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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