期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 310, 期 2, 页码 590-592出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2006.10.232
关键词
heavy fermion; CeNi2Ge2; NQR
We report 73 Ge-nuclear-quadrupole resonance (NQR) study of heavy-fermion compound CeNi2Ge2. The temperature dependence of the 73 Ge nuclear-spin-lattice-relaxation rate 1/T-1 indicates the development of magnetic correlations and the formation of a Fermi-liquid state at temperatures lower than T-FL 0.4K, where 1/T1T is constant. The 1/T1T decrease below T(NQR)c 0.1K, whereas resistance decreases below T (onset)c = 0.2K and does not become zero. These results indicate CeNi2Ge2 closely locates to a superconducting quantum critical point. (c) 2006 Elsevier B. V. All rights reserved.
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