400-Fold Reduction in Saturation Field by Interlayering

Published

January 13, 2009

Author(s)

William F. Egelhoff Jr., John E. Bonevich, Philip Pong, John Unguris, Robert D. McMichael, Gery R. Stafford, Carlos R. Beauchamp

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

Pub Type

Journals

Download Paper

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Keywords

conetic, interlayering, magnetism, saturation field, sensors

Citation

Egelhoff, W. , Bonevich, J. , Pong, P. , Unguris, J. , McMichael, R. , Stafford, G. and Beauchamp, C. (2009), 400-Fold Reduction in Saturation Field by Interlayering, Journal of Applied Physics, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=854046 (Accessed October 17, 2025)