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PUBLICATIONS

Observation of a fluctuation-enhanced magnetoresistance in Ni81Fe19 /Ag multilayers at high current density

Published

Author(s)

Stephen E. Russek, C. T. Rogers, L S. Kirschenbaum, P D. Beale, Steven C. Sanders

Abstract

We report a correlation between peaks observed in the resistance versus applied magnetic field and low frequency resistance noise for Ni81Fe19/Ag giant magnetoresistance systems with dc bias current density above 10^6 A/cm^2. The magnetic noise has a 1/f -like spectrum and arises from time-dependent magnetic orientational fluctuations within the multilayer. The noise amplitude is strongly correlated with the observed magnetoresistance peaks. The data and a simple model for the fluctuations demonstrate the important role of fluctuations in determining magnetoresistance in such multilayer systems.
Citation
Physical Review B
Volume
56
Issue
14
Pub Type
Journals

Download Paper

Local Download
Electromagnetics

Citation

Russek, S. , Rogers, C. , Kirschenbaum, L. , Beale, P. and Sanders, S. (1997), Observation of a fluctuation-enhanced magnetoresistance in Ni81Fe19 /Ag multilayers at high current density, Physical Review B, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=905314 (Accessed October 10, 2025)

Issues

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Created October 1, 1997, Updated February 19, 2017
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