Study of low-energy magnetic excitations in single-crystalline CeIn3 by inelastic neutron scattering
Abstract
Inelastic neutron scattering experiments were performed on single crystals of the heavy-fermion compound CeIn3 for temperatures below and above the N\'eel temperature, TN. 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 TN. Above TN, only the QE and CF excitations persist, with a weak temperature dependence.
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