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Magnetoelectronics

New twist for ballistic transport

Quantized magnetoresistance has been observed in an experiment for the first time. In addition to being of fundamental interest, the result could have applications in sensing and data storage.

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Figure 1: Quantized magnetoresistance has been observed in experiments on atomic-size constrictions between two ferromagnetic cobalt electrodes.

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Johnson, M. New twist for ballistic transport. Nature Nanotech 2, 143–144 (2007). https://doi.org/10.1038/nnano.2007.49

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