Although, according to macroscopic measurements, the intermetallics CeRu2Si
2, UGe2 and YbNiSn have very different electronic ground states, muon spin
relaxation measurements show that these three compounds have an anomalous q
uasi-elastic spectral weight of magnetic excitations in the transfer energy
range of 10 neV. (C) 1999 Elsevier Science B.V, All rights reserved.