Spin Density Wave Instability for Chromium in Fe/Cr(100) Multilayers

Using perturbed angular correlation spectroscopy on Fe/Cr epitaxially grown multilayers, we observed an in-plane magnetization for iron layers (thickness between 1.5 and 38 nm), while Cr (thickness between 7.5 and 40 nm) orders antiferromagnetically as a longitudinal (AF sub 2 ) spin density wave wi...

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Bibliographic Details
Published in:Physical review letters 1995-08, Vol.75 (8), p.1638-1641
Main Authors: Meersschaut, J, Dekoster, J, Schad, R, Beliën, P, Rots, M
Format: Article
Language:English
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Summary:Using perturbed angular correlation spectroscopy on Fe/Cr epitaxially grown multilayers, we observed an in-plane magnetization for iron layers (thickness between 1.5 and 38 nm), while Cr (thickness between 7.5 and 40 nm) orders antiferromagnetically as a longitudinal (AF sub 2 ) spin density wave with the magnetization along the (100) direction normal to the layers, persisting well above the Neel temperature of bulk Cr. The Cr layers lose the Cr bulk magnetism and become paramgentic, down to 4.2K, or even nonmagnetic for thickness < 6.0 nm.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.75.1638