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, K. M. Itoh, E. E. Haller, H. Harima

Research output: Contribution to journalArticlepeer-review

18 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 - Oct 2005

Keywords

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

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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