A deft technique allows magnetic atoms to be placed one by one in a semiconductor crystal. It's a further step towards an ambitious goal: a computer chip that might simultaneously store and manipulate data.
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Samarth, N. Magnetic manipulations. Nature 442, 359–360 (2006). https://doi.org/10.1038/442359a
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DOI: https://doi.org/10.1038/442359a
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