Magnetic Phase Diagrams of the Dense Kondo Compounds CeB6 and Ce0.5La0.5B6

Shintaro Nakamura, Terutaka Goto, Satoru Kunii

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We have studied the magnetic phase diagrams of the dense Kondo compounds CeB6 and Ce0.5La0.5B6 by use of low temperature ultrasonic measurements. A transition associated with a quadrupolar reorientation has clearly been observed around 1 kOe in the antiferroquadrupolar phase ii of CeB6. In the paramagnetic phase I of Ce0.5La0.5B6 a crossover from the ordinaly Γ8 ground state to the Kondo singlet state has been found. The field induced transition from the Kondo singlet state to the antiferromagnetic phase III or the phase II has been found at a critical field 17 kOe. The field angle dependence of the phase diagram of Ce0.5La0.5Be6 is also presented.

Original languageEnglish
Pages (from-to)3941-3945
Number of pages5
JournalJournal of the Physical Society of Japan
Issue number10
Publication statusPublished - 1995 Oct


  • CeLaB
  • CeB
  • dense Kondo effect
  • elastic constant
  • magnetic phase diagram
  • quadrupolar ordering


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