Inelastic neutron scattering experiments were performed on single crystals of the heavy-fermion compound CeIn 3 for temperatures below and above the Néel temperature, T N . In the antiferromagnetically ordered phase, well-defined spin-wave excitations with a bandwidth of 2 meV are observed. The spin waves coexist with quasielastic (QE) Kondo-type spin fluctuations and broadened crystal-field (CF) excitations below T N . Above T N , only the QE and CF excitations persist, with a weak temperature dependence. N.B. Owing to an error in the publishing process, figure 1 of this paper was identical to figure 2. This was corrected on 03/06/03.
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