Magnetic neutron spectra as a function of temperature are presented for the intermediate-valence compounds CePd₃, CeSn₃, CeBe₁₃, YbCu₂{Si}₂$, and TmSe. All compounds show the normal local 4$f$ form factor but a broadened magnetic energy spectrum with an overall width of about 7 to 30 meV and with very little temperature dependence (except TmSe). Closer analysis reveals a residual crystal-field spectrum in YbCu₂{Si}₂$ which may also underlie the spectra of the other compounds. A detailed description of the data analysis is given.
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Holland‐Moritz et al. (1982) studied this question.
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