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Zigzag Shaped Magnetic Sensors

Published

Author(s)

S da, Willard C. Uhlig, A Kos, Joe Aumentado, Michael J. Donahue, John Unguris, David P. Pappas

Abstract

Magnetism in zigzag shaped thin film elements is investigated using scanning electron microscopy with polarization analysis, magneto-transport measurements, and micromagnetic simulations. We find that the angle of magnetization alternates along the length of the element, and is strongly correlated to the corrugated edges. We show that this simple and unique geometry can be used as a naturalo form a magnetic field sensor. In this configuration the sensors are primarily sensitive to fields parallel to the applied current. Our results can be interpreted in terms of a coherent rotation model of the magnetization. These devices are scalable to nanometer dimensions.
Citation
Applied Physics Letters
Volume
85
Issue
24

Keywords

magnetic sensors, magnetoresistance, nanoscale magnetism

Citation

da, S. , Uhlig, W. , Kos, A. , Aumentado, J. , Donahue, M. , Unguris, J. and Pappas, D. (2004), Zigzag Shaped Magnetic Sensors, Applied Physics Letters (Accessed May 18, 2024)

Issues

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Created December 31, 2003, Updated October 12, 2021