期刊
SCIENCE
卷 362, 期 6412, 页码 336-+出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aat7047
关键词
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资金
- Office of Naval Research
- Institute for Basic Science [IBS-R027-D1]
- CONICET [PIP11220150100327]
- FONCyT [PICT-2012-2866]
- ETH Fellowship program
- Fundacao para a Ciencia e a Tecnologia [PTDC/FIS-NAN/4662/2014 (016656)]
- Engineering and Physical Sciences Research Council [EP/L011972/1]
- Alexander von Humboldt Foundation
- EPSRC [EP/J013501/1, EP/L011972/1] Funding Source: UKRI
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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