La impurity effects on quadrupolar ordering in PrPb3

T. Kawae, M. Shimogai, M. Mito, K. Takeda, H. Ishii, T. Kitai

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31 Citations (Scopus)

Abstract

We study low-temperature properties of Pr1-xLaxPb3 with the ground state of a non-Kramers Γ3 for 0≤x ≤0.8. From the concentration dependence of the specific heat, quadrupolar ordering is expected to occur only up to x∼0.02. For a wide range of La concentrations where the ordering is absent, the specific heat shows a T linear variation, which is in an excellent agreement with the result obtained by the model for amorphous materials with a random configuration of a two-level system. Impurity effects on quadrupolar moments will be discussed.

Original languageEnglish
Article number012409
Pages (from-to)124091-124094
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume65
Issue number1
Publication statusPublished - Jan 1 2002

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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