Nonlinear susceptibility measurement for quadrupolar response in a dilute Γ3 Non-Kramers Doublet System Pr0.05La 0.95Pb3

Tatsuya Kawae, Mikito Koga, Yoshiaki Sato, Shun Makiyama, Yuji Inagaki, Naoyuki Tateiwa, Tetsuya Fujiwara, Hiroyuki S. Suzuki, Tetsuo Kitai

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We measure the temperature dependence of the nonlinear susceptibility Χ3, which reflects the fluctuation of quadrupolar moments, in Pr 0.05La0:95Pb3 with a Γ3 non-Kramers doublet in the crystal-electric-field ground state to provide evidence of the quadrupolar Kondo effect. Non-Fermi liquid behavior of Χ3 with a -ln T dependence is detected in the [100] and [110] directions below T ≈ 2:5 K, suggesting the screening of quadrupolar moments. In contrast, Χ3 in the [111] direction becomes constant below T ≈ 3 K. The observed features indicate that a low-lying Γ3 doublet plays a crucial role in the anomalous properties of PrxLa1-xPb3.

Original languageEnglish
Article number073701
Journaljournal of the physical society of japan
Issue number7
Publication statusPublished - Jul 2013

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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