Abstract and subjects
We have performed magnetic susceptibility, specific heat, resistivity, and inelastic neutron scattering measurements on a single crystal of the heavy Fermion compound Ce(Ni0.935Pd0.065)(2)Ge-2, which is believed to be close to a quantum critical point (QCP) at T = 0. At lowest temperature(1.8-3.5 K), the magnetic susceptibility behaves as chi(T) - chi(0) proportional to T-1/6 with chi(0) = 0.032 x 10(-6) m(3)/mole (0.0025 emu/mole). For T < 1 K, the specific heat can be fit to the formula Delta C/T = -gamma(0) - T-1/2 with gamma(0) of order 700 mJ/mole-K-2. The resistivity behaves as rho = rho(0) + AT(3/2) for temperatures below 2 K. This low temperature behavior for gamma(T) and rho(T) is in accord with the SCR theory of Moriya and Takimoto[1]. The inelastic neutron scattering spectra show a broad peak near 1.5 meV that appears to be independent of Q; we interpret this as Kondo scattering with T-K = 17 K. In addition, the scattering is enhanced near Q=(1/2, 1/2, 0) with maximum scattering at Delta E = 0.45 meV; we interpret this as scattering from antiferromagnetic fluctuations near the antiferromagnetic QCP.