Evolution of the magnetism and superconductivity in CeRhIn5 under pressure: 115In-NQR study

Shinji Kawasaki, Takeshi Mito, Guo Qing Zheng, Yu Kawasaki, Kenji Ishida, Yoshio Kltaoka, Dai Aoki, Yoshinori Haga, Yoshichika Onuki

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We report a novel pressure(P)-induced evolution on the magnetism in the P-induced superconductor CeRhlns revealed by measurements of the 115 In nuclear-spin-lattice-relaxation rate (1151/Ti). In the itinerant antiferromagnet CeRhln5 with the Néel temperature Tn = 3.8 K at P=0, Tn begins to be reduced to Tn = 3.6 K at P = 1.23 GPa that is close to the border of the superconducting phase. An emergent behavior is the observation of a pseudogap behavior that is revealed by a broad peak in the temperature dependence of 1/T1T at P = 1.23 GPa. With further increasing P up to P = 2.1 GPa where its bulk superconductivity is fully established, the pseudogap behavior is not seen in the normal state. The insensitive P dependence of Tc in CeRhln5 is suggested to be related to that of the characteristic temperature T which marks a localized to itinerant magnetic crossover.

Original languageEnglish
Pages (from-to)282-284
Number of pages3
Journaljournal of the physical society of japan
Volume71
Issue numberSUPPL.
DOIs
Publication statusPublished - 2002
Externally publishedYes

Keywords

  • CeRhln magnetism
  • Heavy fermion
  • NQR
  • Pressure

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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