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Applied physics

Trawling for complements

A method has been invented for determining nanoscale variations in the distribution of electric charge on surfaces. It has so far been used to examine specific inorganic materials, but could find widespread applications in imaging.

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Figure 1: Charge gradient mapping.

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Correspondence to J. Marty Gregg or Amit Kumar.

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Gregg, J., Kumar, A. Trawling for complements. Nature 510, 481–482 (2014). https://doi.org/10.1038/510481a

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