Authors: | Böhmer, Roland Büttgen, N. Krimmel, A. Loidl, A. |
Title: | NMR studies of the heavy fermion alloy Ce(Cu1-xNix)2Ge2 |
Language (ISO): | en |
Abstract: | A detailed 63Cu NMR investigation is presented for the heavy-fermion system Ce(Cu1-xNix)2Ge2, focusing especially on the alloying induced transition from magnetic order to pure Kondo-like behavior. The broadening of the resonance line and the temperature dependence of the spin-lattice relaxation rate 1/T1 are studied in full detail. We provide experimental evidence for the appearance of heavy-fermion band magnetism for concentrations x=0.6 and x=0.7. For x=0.8 the spin-lattice relaxation rate 1/T1 follows a logarithmic temperature dependence which we interpret as a fingerprint of a non-Fermi-liquid behavior. Finally, 1/T1 is compared to the dynamic structure factor S(Q,ω) as determined in inelastic-neutron-scattering experiments. |
URI: | http://hdl.handle.net/2003/25717 http://dx.doi.org/10.17877/DE290R-3192 |
Issue Date: | 1996 |
Provenance: | The American Physical Society |
URL: | http://dx.doi.org/10.1103/PhysRevB.53.5557 |
Citation: | Büttgen, N.; Böhmer, R.; Krimmel, A.; Loidl, A.: NMR studies of the heavy fermion alloy Ce(Cu1-xNix)2Ge2. In: Physical Review B Nr. 9, Jg. 53(1996), S. 5557-5562, doi: 10.1103/PhysRevB.53.5557. |
Appears in Collections: | Böhmer, Roland Prof. Dr. |
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