The microscopic coexistence of superconductivity and ferromagnetism in UGe2: 73Ge-NMR/NQR study

H. Kotegawa, S. Kawasaki, A. Harada, Y. Kawasaki, K. Okamoto, G. Q. Zheng, Y. Kitaoka, E. Yamamoto, Y. Haga, Y. Onuki, K. M. Itoh, E. E. Haller

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Abstract

We report 73Ge-NMR/NQR measurements on the itinerant ferromagnetic (FM) superconductor UGe2 at P= 1.2GPa. The temperature (T) dependence of the nuclear spin lattice relaxation rate (1/T1) at zero field has demonstrated the onset of the superconducting (SC) transition at Tc = 0.7 K. The lack of a coherence peak in 1/T1 just below Tc, followed by a T3-like behavior, provide compelling evidence for the unconventional nature of the SC state that coexists with the FM state on a microscopic scale in UGe2.

Original languageEnglish
Pages (from-to)e27-e28
JournalJournal of Magnetism and Magnetic Materials
Volume272-276
Issue numberSUPPL. 1
DOIs
Publication statusPublished - 2004 May 1

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Keywords

  • Ferromagnetism
  • NMR
  • Superconductivity

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Kotegawa, H., Kawasaki, S., Harada, A., Kawasaki, Y., Okamoto, K., Zheng, G. Q., Kitaoka, Y., Yamamoto, E., Haga, Y., Onuki, Y., Itoh, K. M., & Haller, E. E. (2004). The microscopic coexistence of superconductivity and ferromagnetism in UGe2: 73Ge-NMR/NQR study. Journal of Magnetism and Magnetic Materials, 272-276(SUPPL. 1), e27-e28. https://doi.org/10.1016/j.jmmm.2003.12.410