Paramagnetic spectral response of the Kondo-lattice compound CePt2Si2

Electrical transport and magnetic properties of (Ce1 xGdx)Pt2Si2(0 x 1)

“…Similar behaviour in χ(T ) was also observed in single-crystal studies [12,13]. Inelastic neutron scattering studies as interpreted in terms of quasi-elastic scattering suggest that the behaviour of CePt 2 Si 2 is intermediate between that of valence fluctuation and heavy-fermion (HF) compounds [14].…”

Spin gap inCeFe4Sb12studied by heat capacity and inelastic neutron scattering

“…27, 28, and 34-47͒ versus the temperature of the maximum to the Ce contribution of the heat capacity T max c or thermal expansion, if the heat capacity data are not available, for the different compounds found in the literature ͑see Refs. 33,34,46, and 48-61͒This is shown in Fig. 7, where we can see that the majority of the compounds are around a straight line for which we have E INS ͑in kelvin͒ equal to about four times T max C .…”

Electrical resistivity of the Kondo system

“…Specific heat studies [8] indicate a Kondo temperature T K ≈ 70 K. The specific heat C P (T ) [8,14] and resistivity [8] exhibit Fermi-liquid behaviour between 4 and 10 K, but at lower temperature C P (T ) shows a strong enhancement [8,14] and ρ(T ) tends to a linear temperature dependence [8] suggesting non-Fermi-liquid behaviour [14]. Inelastic neutron scattering indicates a T K ≈ 170 K and suggests that its properties be intermediate between those of intermediate-valent and heavy-fermion compounds [9].…”

“…The investigation of ternary compounds of the type RT 2 X 2 , where R is a rare earth element, T is a transition metal and X is Si or Ge, have attracted much interest [1][2][3][4][5][6][7][8][9][10][11][12][13]. They exhibit interesting physical properties due to either the localized or de-localized behaviour of the 4f electrons depending on the hybridization strength between 4f electrons and conduction electrons.…”