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400-Fold Reduction in Saturation Field by Interlayering



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


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.
Journal of Applied Physics


conetic, interlayering, magnetism, saturation field, sensors


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], (Accessed June 23, 2024)


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Created January 13, 2009, Updated February 19, 2017