Batch-fabricated spin-injection magnetic switches

A method is developed for the fabrication of sub-100 nm current-perpendicular spin-valve junctions with low contact resistance. The approach is to use a batch-fabricated trilayer template with the junction features defined by a metal stencil layer and an undercut in the insulator. The spin-valve thi...

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Bibliographic Details
Published in:Applied physics letters 2002-09, Vol.81 (12), p.2202-2204
Main Authors: Sun, J. Z., Monsma, D. J., Abraham, D. W., Rooks, M. J., Koch, R. H.
Format: Article
Language:English
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Summary:A method is developed for the fabrication of sub-100 nm current-perpendicular spin-valve junctions with low contact resistance. The approach is to use a batch-fabricated trilayer template with the junction features defined by a metal stencil layer and an undercut in the insulator. The spin-valve thin film stack is deposited afterwards into the stencil, with the insulator undercut providing the necessary magnetic isolation. Using this approach, reproducible spin-current-induced magnetic switching is demonstrated for junctions down to 50 nm×100 nm in size.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1506794