Hyperfine interaction of individual atoms on a surface

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

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

12 Citations (Scopus)

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.

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

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    Willke, P., Bae, Y., Yang, K., Lado, J. L., Ferrón, A., Choi, T., ... Lutz, C. P. (2018). Hyperfine interaction of individual atoms on a surface. Science, 362(6412), 336-339. https://doi.org/10.1126/science.aat7047