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Anomalous Longitudinal Magnetic Field near the Surface of Copper Conductors

S. Kraft·A. Guenther·H. Ott·D. Wharam·C. Zimmermann·J. Fortagh
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Abstract

We have used ultracold atoms to characterize the magnetic field near the surface of copper conductors at room temperature carrying currents between 0.045 A and 2 A. In addition to the usual circular field we find an additional, 1000 - 10000 times smaller longitudinal field. The field changes its strength periodically with a period of 200-300 um.

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S. Kraft, A. Guenther, H. Ott, D. Wharam, C. Zimmermann, J. Fortagh. 2002-10-23. Anomalous Longitudinal Magnetic Field near the Surface of Copper Conductors. https://doi.org/10.1088/0953-4075%2F35%2F21%2F102

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