Hyperfine interaction of individual atoms on a surface

Research output: Contribution to journalArticleScientificpeer-review

Researchers

  • Philip Willke
  • Yujeong Bae
  • Kai Yang
  • Jose Lado

  • Alejandro Ferrón
  • Taeyoung Choi
  • Arzhang Ardavan
  • Joaquín Fernández-Rossier
  • Andreas J. Heinrich
  • Christopher P. Lutz

Research units

  • 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

Abstract

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.

Details

Original languageEnglish
Pages (from-to)336-339
Number of pages4
JournalScience
Volume362
Issue number6412
Publication statusPublished - 19 Oct 2018
MoE publication typeA1 Journal article-refereed

ID: 36717919