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Hyperfine interaction of individual atoms on a surface

Title
Hyperfine interaction of individual atoms on a surface
Authors
Willke, PhilipBae, YujeongYang, KaiLado, Jose L.Ferron, AlejandroChoi, TaeyoungArdavan, ArzhangFernandez-Rossier, JoaquinHeinrich, Andreas J.Lutz, Christopher P.
Ewha Authors
Andreas Heinrich최태영
Issue Date
2018
Journal Title
SCIENCE
ISSN
0036-8075JCR Link

1095-9203JCR Link
Citation
SCIENCE vol. 362, no. 6412, pp. 336 - +
Publisher
AMER ASSOC ADVANCEMENT SCIENCE
Indexed
SCI; SCIE; SCOPUS WOS scopus
Document Type
Article
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.
DOI
10.1126/science.aat7047
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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