Nonlinear acoustic properties of the CeAl3 Kondo system at low temperatures
Voronov B. B., Korobov A. I., Moshchalkov V. V.
A sharp change in the nonlinear acoustic properties has been observed at low temperatures in the Kondo compound CeAi3. This change is associated with the formation of an Abrikosov-Suhl giant resonance near the Fermi level.