115In-NQR study of antiferromagnetism and superconductivity near magnetic criticality in CeIn3

Shinji Kawasaki, T. Mito, Y. Kawasaki, H. Kotegawa, Guo-Qing Zheng, Y. Kitaoka, H. Shishido, Shingo Araki, R. Settai, Y. Onuki

Research output: Contribution to journalArticle

Abstract

We report the discovery of novel phases in CeIn3 on the verge of antiferromagnetism (AFM) through the In-nuclear quadrupole resonance (NQR) measurements. We have found that even though a pressure (P)-induced phase separation into AFM and paramagnetism (PM) takes place, a novel superconductivity (SC), which is induced without strong spin fluctuations, has been found to coexist with AFM on a microscopic level. We propose that the magnetic excitations such as spin-density fluctuations induced by the first-order magnetic phase transition might mediate attractive interaction to form Cooper pairs.

Original languageEnglish
Pages (from-to)413-415
Number of pages3
JournalPhysica B: Condensed Matter
Volume359-361
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - Apr 30 2005
Externally publishedYes

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Keywords

  • Antiferromagnetism
  • CeIn
  • First-order phase transition
  • Superconductivity

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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