Influence of high magnetic fields (10 T) on paramagnons in rare-earth intermetallic compounds

摘要: Abstract Low temperature (0.5–20 K) high field (0–10T) heat capacity and low (0–2T) magnetic susceptibility (60 μK−300K) measurements were used to study characterize the quenching of spin fluctuations (paramagnons) in highly exchange enhanced RCo2 phases, where R = Sc, Y Lu. These compounds are characterized by large many-body mass enhancements (2.54 5.38) Stoner factors (15.5 25.3). The application fields lowers their electronic specific constants 7 10% at 10 T. For YCo2 coefficient T3 term (β) normal equation is found increase with increasing field, but for ScCo2 LuCo2 β remains constant.