Specific heat, resistivity and neutron scattering studies in the Kondo lattice 
CeNi2Ge2

Knopp, G.; Loidl, A.; Caspary, R.; Gottwick, U.; Bredl, C. D.; Spille, H.; Steglich, F.; Murani, A. P.

doi:10.1016/0304-8853(88)90209-0

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Specific heat, resistivity and neutron scattering studies in the Kondo lattice CeNi₂Ge₂

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Knopp, G., Loidl, A., Caspary, R., Gottwick, U., Bredl, C. D., Spille, H., et al. (1988). Specific heat, resistivity and neutron scattering studies in the Kondo lattice CeNi₂Ge₂. Journal of Magnetism and Magnetic Materials, 74(3), 341-346. doi:10.1016/0304-8853(88)90209-0.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0019-CF95-D

Abstract

Specific heat, resistivity and inelastic neutron scattering experiments are reported, which demonstrate that CeNi2Ge2 exhibits a heavy-fermion groundstate which is neither magnetic nor superconducting. The specific heat coefficient γ(T) reaches 350 mJ/K2mol and exhibits a peak at 0.4 K showing that coherence effects become important at low temperatures. The magnetic relaxation rates as measured via the line width in inelastic neutron scattering experiments are strongly enhanced and deviate from a Korringa law behaviour. The Kondo temperature TK ≈ 30 K was determined from the magnetic relaxation rates and from the specific heat data.