Journal Article

PreJuSER-3114

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Anisotropic superexchange in one-dimensional Fe-chains on InAs(110)

Sacharow, L. ; Wiesendanger, R. ; Bihlmayer, G.FZJ* ; Blügel, S.FZJ* ; Morgenstern, M.

2008
Elsevier Amsterdam

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Please use a persistent id in citations: doi:10.1016/j.susc.2008.09.014

Abstract: The magnetic and electronic properties of Fe chains on InAs(I 10) are calculated from first-principles using the density functional theory. The magnetic ground state is found to be anti ferromagnetic (AF) for Fe chains along [1-10] direction and ferromagnetic (FM) for Fe chains along the perpendicular [001] direction. The AF structure is explained with an AF superexchange between Fe atoms via mediating As, while the FM structure is explained with a more complicated exchange path via surface As and In atoms. (c) 2008 Elsevier B.V. All rights reserved.

Keyword(s): J ; Density functional calculations (auto) ; Spin-dependent phenomena (auto) ; Nanostructures (auto) ; Metal-semiconductor magnetic heterostructures (auto) ; Iron (auto) ; Indium arsenide (auto)

Note: We thank A. Lichtenstein and M. Gruninger for helpful discussions and the German Science Foundation (Mo 858/5-1) for financial support. The calculations were performed on the supercomputing systems of the HLRN (http://swww.hlrn.de).

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Contributing Institute(s):

1. Quanten-Theorie der Materialien (IFF-1)
2. Quanten-Theorie der Materialien (IAS-1)
3. Jülich-Aachen Research Alliance - Fundamentals of Future Information Technology (JARA-FIT)
4. Jülich-Aachen Research Alliance - Simulation Sciences (JARA-SIM)

Research Program(s):

1. Grundlagen für zukünftige Informationstechnologien (P42)

Appears in the scientific report 2008

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