Pressure effect on valence fluctuation and magnetic ordering in YbPd

A. Mitsuda, K. Yamada, M. Sugishima, H. Wada

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


The cubic CsCl type compound YbPd is known to be a valence fluctuating compound and to undergo four phase transitions at 0.5, 1.9, 105 and 125 K. In the present study, we focus on pressure effect on the transitions. The transitions at T1 = 105 K and T2 = 125 K, which are accompanied by thermal hysteresis, are of first order. With increasing pressure, the transitions shift toward lower temperature direction. The transition at T1 satisfies the Clausius-Clapeyron's relation, which also supports the first-order transition. T1 disappears at around 1.5 GPa. Above 1.5 GPa, some new ground state would be realized. We can observe an anomaly at 2.8 K which would be associated with magnetic ordering at 1.9 K. The anomaly becomes more distinct with pressure. Since applying pressure stabilizes magnetic Yb3 +, the magnetic ordering becomes more conspicuous.

Original languageEnglish
Pages (from-to)3002-3004
Number of pages3
JournalPhysica B: Condensed Matter
Issue number19
Publication statusPublished - Oct 15 2009

All Science Journal Classification (ASJC) codes

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


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