73Ge-NQR study of heavy-fermion compound CeNi2 Ge2

S. Kawasaki, T. Sada, T. Miyoshi, H. Kotegawa, H. Mukuda, Y. Kitaoka, T. C. Kobayashi, T. Fukuhara, K. Maezawa, K. M. Itoh, E. E. Haller

Research output: Contribution to journalArticle

Abstract

We report 73Ge-nuclear-quadrupole resonance (NQR) study of heavy-fermion compound CeNi2 Ge2. The temperature dependence of the 73Ge nuclear-spin-lattice-relaxation rate 1 / T1 indicates the development of magnetic correlations and the formation of a Fermi-liquid state at temperatures lower than TFL = 0.4 K, where 1 / T1 T is constant. The 1 / T1 T decrease below TcNQR = 0.1 K, whereas resistance decreases below Tconset = 0.2 K and does not become zero. These results indicate CeNi2 Ge2 closely locates to a superconducting quantum critical point.

Original languageEnglish
Pages (from-to)590-592
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 1
DOIs
Publication statusPublished - Mar 1 2007

Keywords

  • CeNi Ge
  • Heavy fermion
  • NQR

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Kawasaki, S., Sada, T., Miyoshi, T., Kotegawa, H., Mukuda, H., Kitaoka, Y., Kobayashi, T. C., Fukuhara, T., Maezawa, K., Itoh, K. M., & Haller, E. E. (2007). 73Ge-NQR study of heavy-fermion compound CeNi2 Ge2. Journal of Magnetism and Magnetic Materials, 310(2 SUPPL. PART 1), 590-592. https://doi.org/10.1016/j.jmmm.2006.10.232