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

H. Kotegawa, Shinji Kawasaki, A. Harada, Y. Kawasaki, K. Okamoto, Guo-Qing Zheng, Y. Kitaoka, E. Yamamoto, Y. Haga, Y. Onuki, K. M. Itoh, E. E. Haller

Research output: Contribution to journalArticle

3 Citations (Scopus)

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
JournalJournal of Magnetism and Magnetic Materials
Volume272-276
Issue numberSUPPL. 1
DOIs
Publication statusPublished - May 2004
Externally publishedYes

Fingerprint

Spin-lattice relaxation
Ferromagnetism
Superconductivity
spin-lattice relaxation
nuclear spin
ferromagnetism
Superconducting materials
superconductivity
Nuclear magnetic resonance
nuclear magnetic resonance
Temperature
temperature

Keywords

  • Ferromagnetism
  • NMR
  • Superconductivity

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

The microscopic coexistence of superconductivity and ferromagnetism in UGe2 : 73Ge-NMR/NQR study. / Kotegawa, H.; Kawasaki, Shinji; Harada, A.; Kawasaki, Y.; Okamoto, K.; Zheng, Guo-Qing; Kitaoka, Y.; Yamamoto, E.; Haga, Y.; Onuki, Y.; Itoh, K. M.; Haller, E. E.

In: Journal of Magnetism and Magnetic Materials, Vol. 272-276, No. SUPPL. 1, 05.2004.

Research output: Contribution to journalArticle

Kotegawa, H, Kawasaki, S, Harada, A, Kawasaki, Y, Okamoto, K, Zheng, G-Q, Kitaoka, Y, Yamamoto, E, Haga, Y, Onuki, Y, Itoh, KM & Haller, EE 2004, 'The microscopic coexistence of superconductivity and ferromagnetism in UGe2: 73Ge-NMR/NQR study', Journal of Magnetism and Magnetic Materials, vol. 272-276, no. SUPPL. 1. https://doi.org/10.1016/j.jmmm.2003.12.410
Kotegawa, H. ; Kawasaki, Shinji ; Harada, A. ; Kawasaki, Y. ; Okamoto, K. ; Zheng, Guo-Qing ; Kitaoka, Y. ; Yamamoto, E. ; Haga, Y. ; Onuki, Y. ; Itoh, K. M. ; Haller, E. E. / The microscopic coexistence of superconductivity and ferromagnetism in UGe2 : 73Ge-NMR/NQR study. In: Journal of Magnetism and Magnetic Materials. 2004 ; Vol. 272-276, No. SUPPL. 1.
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AU - Okamoto, K.

AU - Zheng, Guo-Qing

AU - Kitaoka, Y.

AU - Yamamoto, E.

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