Weymouth, Alfred J. and Wutscher, Thorsten and Welker, Joachim and Hofman, Thomas and Giessibl, Franz J.
Phantom Force Induced by Tunneling Current: A Characterization on Si(111).
Physical Review Letters (PRL) 106 (22), p. 226801.
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Other URL: http://link.aps.org/doi/10.1103/PhysRevLett.106.226801
Simultaneous measurements of tunneling current and atomic forces provide complementary atomic-scale data of the electronic and structural properties of surfaces and adsorbates. With these data, we characterize a strong impact of the tunneling current on the measured force on samples with limited conductivity. The effect is a lowering of the effective gap voltage through sample resistance which in ...
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