On the high-pressure phase diagram of YbRh2 Si2

G. Knebel, E. Hassinger, G. Lapertot, P. G. Niklowitz, J. P. Sanchez, J. Flouquet

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

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.

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

Keywords

  • Heavy fermion
  • High pressure
  • YbRh Si

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