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Internal Conversion Coefficient for Valence Electrons of Metals. Theory and Application to 110 Ag
Author(s) -
Schober C.,
Antonov V. N.,
Ziesche P.
Publication year - 1990
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221590224
Subject(s) - electron , atomic physics , valence electron , core electron , valence (chemistry) , core charge , photon , photon energy , physics , chemistry , condensed matter physics , quantum mechanics
The ab‐initio electron theory of the internal conversion coefficient (ICC) is developed for the case of pure crystalline metals, the radioactive nuclei of which emit γ‐quanta with relatively small energy (≦ keV) exciting thus preponderantly valence electrons. In this case the photon wavelength is large in comparison with the radius of the nucleus and the ICC ( = energy spectrum of the emitted conversion electrons) becomes independent of the properties of the nucleus. For any electric or magnetic transition and using spherically symmetric muffin‐tin potentials the ICC is expressed by the characteristic quantitites of the electron making a transition from an occupied valence state to an unoccupied free electron state. The calculations for 110 Ag show the ICC to reflect directly the density of states of the valence electrons.