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hyperfine structure
[ hahy-per-fahyn, hahy- ]
noun
- the splitting of the lines of an atomic spectrum, produced by the angular momentum of the nucleus of the atom.
hyperfine structure
/ ˈhaɪpəˌfaɪn /
noun
- the splitting of a spectral line of an atom or molecule into two or more closely spaced components as a result of interaction of the electrons with the magnetic moments of the nuclei Compare fine structure See also Zeeman effect
Word History and Origins
Origin of hyperfine structure1
Example Sentences
Villemoes, P., Arnesen, A., Heijkenskjold, F. & Wannstrom, A. Isotope shifts and hyperfine structure of 134–138Ba ii by fast ion beam-laser spectroscopy.
Silverans, R. E., Borghs, G., de Bisschop, P. & van Hove, M. Hyperfine structure of the 5d 2DJ states in the alkaline-earth Ba ion by fast-ion-beam laser-rf spectroscopy.
Villemoes, P., Arnesen, A., Heijkenskjold, F., Kastberg, A. & Wannstrom, A. Hyperfine structure measurements of 151,153Eu ii with fast ion beam-laser spectroscopy.
The observation of hyperfine structure in atomic hydrogen by Rabi and co-workers1, 2, 3 and the measurement4 of the zero-field ground-state splitting at the level of seven parts in 1013 are important achievements of mid-twentieth-century physics.
Recently, tools have been developed that enable studies of the hyperfine structure of antihydrogen12—the antimatter counterpart of hydrogen.
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