Fyzikální ústav Akademie věd ČR

1. left image: topography of grains measured by ambient atomic force microscopy (AFM)
2. right image: simultaneously measured map of local conductivity.

We are measuring the current flowing from the AFM tip through the sample to the bottom electrode.
T. Mates et al., J. Non-Crystalline Solids, 352 (2006) 1011