Magnetic structure of Fe/Cr/Fe trilayers

The magnetic structure of each layer of Fe/Cr/Fe trilayers deposited on GaAs(001) is determined by soft X-ray magnetic circular dichroism (SXMCD) which is derived from X-ray absorption spectroscopy using circularly polarized light. Submonolayer coverages (0.25 ML) of Cr on Fe(001) films are found to...

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Bibliographic Details
Published in:Surface science 1993-05, Vol.287, p.741-746
Main Authors: Idzerda, Y.U., Tjeng, L.H., Lin, H.-J., Gutierrez, C.J., Meigs, G., Chen, C.T.
Format: Article
Language:English
Subjects:
Applied sciences
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Interfacial magnetic properties (multilayers, magnetic quantum wells, superlattices, magnetic heterostructures)
Magnetic properties and materials
Magnetic properties of monolayers and thin films
Magnetic properties of surface, thin films and multilayers
Metals. Metallurgy
Physics
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Summary:The magnetic structure of each layer of Fe/Cr/Fe trilayers deposited on GaAs(001) is determined by soft X-ray magnetic circular dichroism (SXMCD) which is derived from X-ray absorption spectroscopy using circularly polarized light. Submonolayer coverages (0.25 ML) of Cr on Fe(001) films are found to be ferromagnetic and anti-aligned to the Fe moment. Additional Cr deposition shows a monotonically decreasing total moment, consistent with island growth of ferromagnetic Cr sheets anti-aligned with adjoining Cr layers. A second Fe film deposited on thin Cr interlayers is anti-aligned with the first Fe film. A second Fe film of less than 2 ML thickness shows no SXMCD signal.
ISSN:0039-6028
1879-2758
DOI:10.1016/0039-6028(93)91064-V