Imprinting magnetic structures

We created helical magnetic structures by depositing in sequence layers of lanthanum and iron (each 30 Å thick) on a substrate rotating in a fixed field of a few Oe. The magnetic field was sufficient to define the magnetization of each layer during growth without disturbing the magnetization of the...

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Bibliographic Details
Published in:Applied physics letters 1998-06, Vol.72 (22), p.2894-2896
Main Authors: Felcher, G. P., Lohstroh, W., Fritzsche, H., Münzenberg, M., Maletta, H., Felsch, W.
Format: Article
Language:English
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Summary:We created helical magnetic structures by depositing in sequence layers of lanthanum and iron (each 30 Å thick) on a substrate rotating in a fixed field of a few Oe. The magnetic field was sufficient to define the magnetization of each layer during growth without disturbing the magnetization of the layers already formed. As a result, the imprinted helical magnetic structure had a chirality given by the direction of rotation of the substrate; the pitch was given by the speed of rotation and the rate of deposition. This finding indicates that it is possible to engineer mesoscopic magnetic structures.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.121451