@article{ hapala_origin_2014,
  title = {Origin of High-Resolution {IETS}-{STM} Images of Organic Molecules with Functionalized Tips},
  volume = {113},
  url = {http://link.aps.org/doi/10.1103/PhysRevLett.113.226101},
  doi = {10.1103/PhysRevLett.113.226101},
  abstract = {Recently, the family of high-resolution scanning probe imaging techniques using decorated tips has been complemented by a method based on inelastic electron tunneling spectroscopy ({IETS}). The new technique resolves the inner structure of organic molecules by mapping the vibrational energy of a single carbon monoxide ({CO}) molecule positioned at the apex of a scanning tunneling microscope ({STM}) tip. Here, we explain high-resolution {IETS} imaging by extending a model developed earlier for {STM} and atomic force microscopy ({AFM}) imaging with decorated tips. In particular, we show that the tip decorated with {CO} acts as a nanoscale sensor that changes the energy of its frustrated translation mode in response to changes of the local curvature of the surface potential. In addition, we show that high resolution {AFM}, {STM}, and {IETS}-{STM} images can deliver information about the charge distribution within molecules deposited on a surface. To demonstrate this, we extend our mechanical model by taking into account electrostatic forces acting on the decorated tip in the surface Hartree potential.},
  number = {22},
  urldate = {2014-12-17TZ},
  journal = {Physical Review Letters},
  author = {Hapala, Prokop and Temirov, Ruslan and Tautz, F. Stefan and Jelínek, Pavel},
  month = {November},
  year = {2014},
  note = {00000},
  pages = {226101}
}

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