Hyperfine interaction of individual atoms on a surface

Tutkimustuotos: Lehtiartikkelivertaisarvioitu


  • Philip Willke
  • Yujeong Bae
  • Kai Yang
  • Jose L. Lado
  • Alejandro Ferrón
  • Taeyoung Choi
  • Arzhang Ardavan
  • Joaquín Fernández-Rossier
  • Andreas J. Heinrich
  • Christopher P. Lutz


  • IBM
  • Institute for Basic Science
  • Ewha Womans University
  • QuantaLab
  • International Iberian Nanotechnology Laboratory
  • Swiss Federal Institute of Technology Zurich
  • Universidad Nacional del Nordeste
  • University of Oxford
  • University of Alicante


Taking advantage of nuclear spins for electronic structure analysis, magnetic resonance imaging, and quantum devices hinges on knowledge and control of the surrounding atomic-scale environment. We measured and manipulated the hyperfine interaction of individual iron and titanium atoms placed on a magnesium oxide surface by using spin-polarized scanning tunneling microscopy in combination with single-atom electron spin resonance. Using atom manipulation to move single atoms, we found that the hyperfine interaction strongly depended on the binding configuration of the atom. We could extract atom- and position-dependent information about the electronic ground state, the state mixing with neighboring atoms, and properties of the nuclear spin. Thus, the hyperfine spectrum becomes a powerful probe of the chemical environment of individual atoms and nanostructures.


TilaJulkaistu - 19 lokakuuta 2018
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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