Ea. Gorlich et al., LOCAL PICTURE OF THE MAGNETISM OF INTERMEDIATE VALENCE EUCU2-XAGXSI2 PHASES, Journal of magnetism and magnetic materials, 144, 1995, pp. 1235-1236
With increasing silver concentration in EuCu2-xAgrSi2 phases the time-
averaged europium 4f electronic configuration is driven closer toward
the divalent state. The Eu-151 gamma-resonance absorption measurements
performed in the temperature range 1.8-20 K revealed the presence of
the magnetically ordered regions which vanish upon increasing the temp
erature. At x = 1.5 magnetic ordering extends over the whole volume of
the sample, whereas the saturation hyperfine field is distinctly smal
ler than that for e.g. x = 0.25 sample.