Non-Fermi liquid behavior in dilute quadrupolar system Pr xLa1-xPb3 with x ≤ 0.05

Tatsuya Kawae, Tatsuharu Yamamoto, Kenji Yurue, Naoyuki Tateiwa, Kazuyoshi Takeda, Tetsuo Kitai

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Abstract

We have studied the low-temperature properties of PrxLa 1-x,Pb3 with non-Kramers Γ3 quadrupolar moments of the crystal-electric-field ground state, for a wide concentration range of Pr ions. For z ≤ 0.05, the specific heat C/T increases monotonically below T = 1.5 K, which can be scaled with a characteristic temperature T* defined at each concentration x. The electrical resistivity ρ(T) in the corresponding temperature region shows a marked decrease deviating from a Fermi-liquid behavior ρ(T) ∝ T2. The Kondo effect arising from the correlation between the dilute Γ3 moments and the conduction electrons may give rise to such anomalous behavior.

Original languageEnglish
Pages (from-to)2141-2144
Number of pages4
Journaljournal of the physical society of japan
Volume72
Issue number9
DOIs
Publication statusPublished - Sep 1 2003

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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