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Hyperfine interaction of individual atoms on a surface

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Science  19 Oct 2018:
Vol. 362, Issue 6412, pp. 336-339
DOI: 10.1126/science.aat7047

Hyperfine spectra of surface atoms

The interaction of nuclei with nonzero spin with electron spins creates small electronic energy. With a scanning tunneling microscope tip, Willke et al. measured these hyperfine interactions for iron and titanium atoms that were manipulated on a magnesium oxide surface. The tip was also used to measure electron paramagnetic resonance spectra. The hyperfine structure of single atoms was sensitive to the binding site of the atom as well as its position relative to other magnetic atoms.

Science, this issue p. 336

  • * On leave from Departamento de Física Aplicada, Universidad de Alicante, San Vicente del Raspeig 03690, Spain.

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