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

K. Arai, M. Takigawa, S. Yonezawa, Yuji 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

Fingerprint

Osmium
osmium
Hydrostatic pressure
hydrostatic pressure
Superconducting materials
nuclear relaxation
Nuclear magnetic resonance
nuclear magnetic resonance
Pressure effects
pressure effects
Superconducting transition temperature
transition temperature
Temperature
temperature dependence
pyrochlore

Keywords

  • Hydrostatic pressure
  • Pyrochlore superconductor

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

NMR studies of β-pyrochlore superconductors with osmium, under hydrostatic pressure. / Arai, K.; Takigawa, M.; Yonezawa, S.; Muraoka, Yuji; Hiroi, Z.

In: Physica B: Condensed Matter, Vol. 378-380, No. SPEC. ISS., 01.05.2006, p. 878-879.

Research output: Contribution to journalArticle

Arai, K. ; Takigawa, M. ; Yonezawa, S. ; Muraoka, Yuji ; Hiroi, Z. / NMR studies of β-pyrochlore superconductors with osmium, under hydrostatic pressure. In: Physica B: Condensed Matter. 2006 ; Vol. 378-380, No. SPEC. ISS. pp. 878-879.
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