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Sub-atomic size feature in Bi-nanolines

Published on August 23, 2017

Reduced dimensions can give rise to surprising effects. While a long exposure time photograph of a macroscopic moving object appears blurred, scanning tunneling microscopy images of flipping Si dimer defects embedded in Bi-nanolines on the Si(001) surface appear much sharper than those of static ones. This counter intuitive dynamic sharpening is perfectly modelled by density functional theory.

Collaboration with UCL/LCN.

Phys. Rev. B.96, 075304 (2017)