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Publication Citation: 400-Fold Reduction in Saturation Field by Interlayering

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Author(s): William F. Egelhoff Jr.; John E. Bonevich; Philip Pong; John Unguris; Robert D. McMichael; Gery R. Stafford; Carlos R. Beauchamp;
Title: 400-Fold Reduction in Saturation Field by Interlayering
Published: January 13, 2009
Abstract: The buildup of stress with increasing thickness of magnetic thin films is a common phenomenon that often induces undesirable saturation fields that can convert an otherwise magnetically soft film into a magnetically hard one. We have found that by interlayering such a magnetic thin film with films that are either not lattice matched or have a different crystal structure, reductions in the saturation field as large as 400 fold can be achieved. Stress relief by grain re-nucleation on the intelayers appears to be responsible.
Citation: Journal of Applied Physics
Volume: 105
Issue: 1
Keywords: conetic, interlayering, magnetism, saturation field, sensors
Research Areas: Metals
PDF version: PDF Document Click here to retrieve PDF version of paper (326KB)