Crystal field splitting of some rare earth intermetallic compounds with Cu3Au structure

Study of low-energy magnetic excitations in single-crystalline CeIn3by inelastic neutron scattering

“…Since these excitations overlap with each other and with the incoherent peak (see figure 2), the energy, width, and weight of the different contributions extracted from the data depend on the model used for the fitting. This is illustrated by the scatter in the estimates of ∆ CF , Γ CF , and Γ QE found in the literature [10,11,18,19]. At low temperatures, the QE excitation corresponds to the spin fluctuations of the Γ 7 electronic level, which are attributed to the Kondo effect.…”

Superconducting phases off-electron compounds

“…For CeIn 3 the CEFs split the J = 5/2 manifold into a Γ 7 ground state doublet and a Γ 8 quartet at around 12ṁeV (Benoit et al, 1980;Christianson et al, 2004;Groß et al, 1980;Lawrence and Shapiro, 1980;Murani et al, 1993). For the series CeMIn 5 the quartet is further split into two Γ 7 and Γ 6 Kramers doublets, where values of the first and second energy levels are given in table II (Christianson et al, 2004).…”

Eighth conference on quantum electronics and nonlinear optics EKON-78, Poznan, Poland, April 24–27,1978

“…This set corresponds to positive parameters, A 4 r 4 = 38.4 K and A 6 r 6 = 3.3 K. These parameters lead to a weak value of the CEF total spacing, which explains the difficulty of observing well resolved excitations by neutron spectroscopy. In table 4 we compare these values with those previously reported in PrIn 3 [14,23] and in NdIn 3 [13]. The evolution of the A 4 r 4 and A 6 r 6 parameters from Pr to Tb appears very coherent.…”