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Effect of crystal field on the inelastic neutron scattering cross‐section (II)
Author(s) -
Sugawara K.
Publication year - 1979
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.2220920137
Subject(s) - inelastic neutron scattering , inelastic scattering , laser linewidth , excited state , neutron , neutron scattering , cross section (physics) , atomic physics , quasielastic neutron scattering , crystal (programming language) , condensed matter physics , field (mathematics) , physics , scattering , quasielastic scattering , chemistry , nuclear physics , optics , quantum mechanics , computer science , programming language , laser , mathematics , pure mathematics
The linewidth of magnetic inelastic neutron scattering in metals is studied theoretically. In particular the linewidth due to the sf interaction is investigated on the basis of the Hirst theory for magnetic ions with substantial crystal‐field splitting. The theory is applied to the quasi‐elastic and the inelastic neutron scattering cross‐sections due to Ce 3+ . The experiments of Loewenhaupt and Steglich on the (Ce x La 1− x )Al 2 , considered to be the first to demonstrate the non‐vanishing values of the linewidths associated with excited states near zero temperature, can be qualitatively explained by the present theory.