Quadrupolar Kondo Effect in Non-Kramers Doublet System PrInAg2

• Suzuki Osamu

  National Institute for Materials Science

• Suzuki Hiroyuki S.

  National Institute for Materials Science

• Kitazawa Hideaki

  National Institute for Materials Science

• Kido Giyuu

  National Institute for Materials Science

• Ueno Takafumi

  Graduate School of Science and Technology, Niigata University

• Yamaguchi Takashi

  Graduate School of Science and Technology, Niigata University

• Nemoto Yuichi

  Graduate School of Science and Technology, Niigata University

• Goto Terutaka

  Graduate School of Science and Technology, Niigata University

Bibliographic Information

Other Title

• Quadrupolar Kondo Effect in Non-Kramers Doublet System PrInAg₂

Abstract

We performed ultrasonic measurement on the rare-earth intermetallic compound PrInAg₂ to examine the quadrupolar Kondo effect associated with the non-Kramers Γ₃ doublet ground state. The characteristic softening of the elastic constant (c₁₁−c₁₂)⁄2 below 10 K in PrInAg₂ is attributed to the Curie term in quadrupolar susceptibility for the quadrupole O₂²=J_x²−J_y² of the stable Γ₃ ground state. (c₁₁−c₁₂)⁄2 turns to a slight increase with the −lnT dependence below 0.1 K, which suggests the quenching of the quadrupolar moment in the quadrupolar Kondo state. Under applied magnetic fields of 10 T and 15 T above 8.7 T corresponding to the Kondo temperature T_K of ∼0.86 K, the behavior of (c₁₁−c₁₂)⁄2 is described in terms of quadrupolar susceptibility for the stable 4f² state.

Journal

• Journal of the Physical Society of Japan

  Journal of the Physical Society of Japan 75 (1), 013704-, 2006

  THE PHYSICAL SOCIETY OF JAPAN

Keywords

• PrInAg<SUB>2</SUB>
• quadrupolar Kondo effect
• elastic constant
• non-Kramers doublet

Details

• CRID: 1390282679165515520
• NII Article ID: 110003482816
• NII Article ID: 210000105942
• NII Book ID: AA00704814
• DOI: 10.1143/jpsj.75.013704
• BIBCODE: 2006JPSJ...75a3704S
• ISSN: 13474073
• ISSN: 00319015
• NDL BIB ID: 7771953
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7771953
• Web Site: http://journals.jps.jp/doi/pdf/10.1143/JPSJ.75.013704
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed