Low-temperature properties in dilute quadrupolar compound Pr xLa1-xInAg2

Tatsuya Kawae, Chenshu Li, Yasuo Yoshida, Kazuyoshi Takeda, Takayuki Asano, Tetsuo Kitai

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The low-temperature properties of PrxLa1-xInAg 2 have been studied for a wide concentration range of Pr ions between 0 ≤ x ≤ 0:6. The susceptibility above T = 15K is well reproduced by the crystalelectric-field level scheme with a non-Kramers Γ3 doublet in the ground state for each concentration, while that below T = 15K shows a non-Fermi-liquid behavior with a logarithmic temperature dependence. The temperature dependence of the specific heat C/T shows a monotonic enhancement below T = 10 K, which can be scaled by a characteristic temperature T* defined at each concentration. These results suggest that the anomalous low-temperature properties are understood as the single-ion nature of Γ3 quadrupolar moments. The origin of the anomalous properties is discussed in connection with the quadrupolar Kondo effect arising from the correlation between the Γ3 moments and the conduction electrons.

Original languageEnglish
Pages (from-to)2332-2337
Number of pages6
JournalJournal of the Physical Society of Japan
Volume74
Issue number8
DOIs
Publication statusPublished - Aug 2005

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this