PlumX Metrics
Embed PlumX Metrics

Cu-NQR study of magnetism and superconductivity in Ce 1+x Cu 2+y Si 2 under pressure

Physica B: Condensed Matter, ISSN: 0921-4526, Vol: 281, Page: 14-15
2000
  • 5
    Citations
  • 0
    Usage
  • 0
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    5
    • Citation Indexes
      5

Article Description

In order to investigate the magnetic properties at the vicinity of magnetic to superconducting (SC) phase boundary, we have performed Cu-NQR measurements under hydrostatic pressure ( P ) on two off-stoichiometric Ce 1+x Cu 2+y Si 2. Ce 0.99 Cu 2.02 Si 2 exhibits the anomalous ground state so-called A-phase, dominated by critical magnetic correlations and affected by a presence of minor SC fraction at ambient P. With increasing P which enhances the Kondo temperature, the fraction of the A-phase is markedly suppressed, but the SC fraction is increased, although T c stays nearly constant in the range of 1 bar < P <14.4 kbar. This evidences that the P -induced A- to SC phase change is of first order. In Ce 0.975 Cu 2 Si 2 which undergoes a static magnetic ordering (SMO) at ambient P below T N ∼0.6 K, no superconductivity has been induced up to 19.4 kbar.

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know