Cooperative phenomenon of ferromagnetism and unconventional superconductivity in UGe2

A 73Ge-NQR study under pressure

A. Harada, S. Kawasaki, H. Kotegawa, Y. Kitaoka, Y. Haga, E. Yamamoto, Y. Onuki, Kohei M Itoh, E. E. Haller, H. Harima

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We report on a cooperative phenomenon of ferromagnetism and unconventional superconductivity (SC) in UGe2 through the measurements of 73Ge nuclear-quadrupole-resonance (NQR) under pressure (P). The NQR spectra evidenced phase separation into ferromagnetic and paramagnetic phases in the vicinity of Pc ∼ 1.5 GPa, pointing to a first-order transition. The measurements of nuclear-spin-lattice-relaxation-rate 1/T 1 revealed that SC emerges under the background of ferromagnetism, but not of the paramagnetic phase.

Original languageEnglish
Pages (from-to)2675-2678
Number of pages4
JournalJournal of the Physical Society of Japan
Volume74
Issue number10
DOIs
Publication statusPublished - 2005 Oct

Fingerprint

nuclear quadrupole resonance
ferromagnetism
superconductivity
spin-lattice relaxation
nuclear spin

Keywords

  • First-order phase transition
  • Itinerant ferromagnetism
  • NQR under pressure
  • UGe
  • Unconventional superconductivity

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Cooperative phenomenon of ferromagnetism and unconventional superconductivity in UGe2 : A 73Ge-NQR study under pressure. / Harada, A.; Kawasaki, S.; Kotegawa, H.; Kitaoka, Y.; Haga, Y.; Yamamoto, E.; Onuki, Y.; Itoh, Kohei M; Haller, E. E.; Harima, H.

In: Journal of the Physical Society of Japan, Vol. 74, No. 10, 10.2005, p. 2675-2678.

Research output: Contribution to journalArticle

Harada, A, Kawasaki, S, Kotegawa, H, Kitaoka, Y, Haga, Y, Yamamoto, E, Onuki, Y, Itoh, KM, Haller, EE & Harima, H 2005, 'Cooperative phenomenon of ferromagnetism and unconventional superconductivity in UGe2: A 73Ge-NQR study under pressure', Journal of the Physical Society of Japan, vol. 74, no. 10, pp. 2675-2678. https://doi.org/10.1143/JPSJ.74.2675
Harada, A. ; Kawasaki, S. ; Kotegawa, H. ; Kitaoka, Y. ; Haga, Y. ; Yamamoto, E. ; Onuki, Y. ; Itoh, Kohei M ; Haller, E. E. ; Harima, H. / Cooperative phenomenon of ferromagnetism and unconventional superconductivity in UGe2 : A 73Ge-NQR study under pressure. In: Journal of the Physical Society of Japan. 2005 ; Vol. 74, No. 10. pp. 2675-2678.
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AU - Yamamoto, E.

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