NMR studies of β-pyrochlore superconductors with osmium, under hydrostatic pressure

K. Arai, M. Takigawa, S. Yonezawa, Y. Muraoka, Z. Hiroi

Research output: Contribution to journalArticle

Abstract

We report pressure effects on the multiscripts(Rb, mml:none(), mml:none(), prescripts(), mml:none(), 87) nuclear relaxation rate 1 / T1 in the osmate superconductor RbOs2 O6. The superconducting transition temperature Tc increases from 6.3 K at ambient pressure to 8.2 K at 2 GPa. Although 1 / ( T1 T ) is slightly enhanced by pressure at low temperatures, the temperature dependence of 1 / ( T1 T ) hardly changes below Tc. Even though Tc of RbOs2 O6 at 2 GPa reaches a value close to that of KOs2 O6 at ambient pressure (9.6 K), they show completely different nuclear relaxation behaviors.

Original languageEnglish
Pages (from-to)878-879
Number of pages2
JournalPhysica B: Condensed Matter
Volume378-380
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - May 1 2006
Externally publishedYes

Keywords

  • Hydrostatic pressure
  • Pyrochlore superconductor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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