Neutron scattering studies on heavy-fermion superconductors

N. Metoki, Y. Koike, Y. Haga, T. Honma, M. Sato, Y. Onuki, N. Kimura, K. Maesawa, H. Amitsuka, M. Yokoyama, K. Kuwahara, Y. Miyako

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)

Abstract

We review recent neutron scattering studies on uranium-based heavy-fermion superconductors. The coupling between magnetic and superconducting order parameters was observed in UPt3, UPd2Al3, URu2Si2, and UNi2Al3. In UPd2Al3, the superconducting gap appears in the spin excitation spectra. These results are indicative of the strong interplay between magnetism and superconductivity. We also report the unusual behaviors of the weak antiferromagnetic ordering, the long-range magnetic correlation in UPt3 at ultra-low temperatures, and the pressure-induced magnetic transition from the weak (0.02μB/U) to a high moment state (0.4μB/U) at 1.5 GPa in URu2Si2.

Original languageEnglish
Pages (from-to)362-367
Number of pages6
JournalPhysica B: Condensed Matter
Volume280
Issue number1-4
DOIs
Publication statusPublished - 2000 May 11
Event22nd International Conference on Low Temperature Physics (LT-22) - Helsinki, Finl
Duration: 1999 Aug 41999 Aug 11

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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