hyperfine structure


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hy·per·fine structure

 (hī′pər-fīn′)
n. Abbr. hfs
Any of the spectral lines formed from the splitting of broader spectral lines as a result of the interaction between the magnetic moments of electrons and atomic nuclei.

hyperfine structure

(ˈhaɪpəˌfaɪn)
n
(General Physics) 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
References in periodicals archive ?
Pauli first postulated that the atomic nucleus has a non-zero angular momentum (nuclear spin), (11) which would provide hyperfine structure due to a magnetic dipole interaction in addition to that due to nuclear field effects (electric quadrupole interaction).
Theory of the Stark Effect on the Atomic Hyperfine structure.
In many cases, hyperfine structure enables unambiguous identification of the species.
These estimated values included g-factors, hyperfine structure constants, and line widths that characterized the shape and intensity of each spectral component.
Also, nuclear quadrupole hyperfine structure has shown a major reorganization of the electron distribution of both Xe and Au on complex formation.
Differential Stark Effect in the Ground-state Hyperfine Structure of Gallium.