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Hyperfine interaction of individual atoms on a surface
- Hyperfine interaction of individual atoms on a surface
- Willke, Philip; Bae, Yujeong; Yang, Kai; Lado, Jose L.; Ferron, Alejandro; Choi, Taeyoung; Ardavan, Arzhang; Fernandez-Rossier, Joaquin; Heinrich, Andreas J.; Lutz, Christopher P.
- Ewha Authors
- Andreas Heinrich; 최태영
- Issue Date
- Journal Title
- SCIENCE vol. 362, no. 6412, pp. 336 - +
- AMER ASSOC ADVANCEMENT SCIENCE
- SCI; SCIE; SCOPUS
- Document Type
- 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.
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