On the high-pressure phase diagram of YbRh2 Si2

Research output: Contribution to journal › Research article › Contributed › peer-review

Contributors

  • G. Knebel - , French Alternative Energies and Atomic Energy Commission (CEA) (Author)
  • E. Hassinger - , French Alternative Energies and Atomic Energy Commission (CEA) (Author)
  • G. Lapertot - , French Alternative Energies and Atomic Energy Commission (CEA) (Author)
  • P. G. Niklowitz - , French Alternative Energies and Atomic Energy Commission (CEA) (Author)
  • J. P. Sanchez - , French Alternative Energies and Atomic Energy Commission (CEA) (Author)
  • J. Flouquet - , French Alternative Energies and Atomic Energy Commission (CEA) (Author)

Abstract

We studied the high-pressure phase diagram of YbRh2 Si2 by AC calorimetry under high pressure up to 12 GPa. Two magnetic transitions are observed in the pressure range up to 7 GPa. The initial linear increase of the magnetic ordering temperature TN with pressure is followed by a regime up to 8.5 GPa where valence fluctuations are important. Above 9 GPa TN is increasing as expected from the Doniach model. Further the influence of the local crystal electric field on the magnetic ordering is discussed.

Details

Original languageEnglish
Pages (from-to)68-69
Number of pages2
JournalPhysica B: Condensed Matter
Volume378-380
Issue numberSPEC. ISS.
Publication statusPublished - 1 May 2006
Peer-reviewedYes
Externally publishedYes

Keywords

ASJC Scopus subject areas

Keywords

  • Heavy fermion, High pressure, YbRh Si