Quadrupolar susceptibility and magnetic phase diagram of PrNi2Cd20 with non-Kramers doublet ground state

Tatsuya Yanagisawa, Hiroyuki Hidaka, Hiroshi Amitsuka, Shintaro Nakamura, Satoshi Awaji, Elizabeth L. Green, Sergei Zherlitsyn, Joachim Wosnitza, Duygu Yazici, Benjamin D. White, M. Brian Maple

Research output: Contribution to journalArticle

Abstract

In this study, ultrasonic measurements were performed on a single crystal of cubic PrNi2Cd20, down to a temperature of 0.02 K, to investigate the crystalline electric field ground state and search for possible phase transitions at low temperatures. The elastic constant (C11−C12)/2, which is related to the Γ3-symmetry quadrupolar response, exhibits the Curie-type softening at temperatures below ∼30 K, which indicates that the present system has a Γ3 non-Kramers doublet ground state. A leveling-off of the elastic response appears below ∼0.1 K toward the lowest temperatures, which implies the presence of level splitting owing to a long-range order in a finite-volume fraction associated with Γ3-symmetry multipoles. A magnetic field–temperature phase diagram of the present compound is constructed up to 28 T for H || [110]. A clear acoustic de Haas–van Alphen signal and a possible magnetic-field-induced phase transition at H ∼26 T are also detected by high-magnetic-field measurements.

Original languageEnglish
Pages (from-to)1268-1281
Number of pages14
JournalPhilosophical Magazine
Volume100
Issue number10
DOIs
Publication statusPublished - 2020 May 18

Keywords

  • Elasticity
  • Kondo effect
  • crystal field
  • phase diagrams
  • strongly correlated electrons
  • ultrasonic attenuation

ASJC Scopus subject areas

  • Condensed Matter Physics

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    Yanagisawa, T., Hidaka, H., Amitsuka, H., Nakamura, S., Awaji, S., Green, E. L., Zherlitsyn, S., Wosnitza, J., Yazici, D., White, B. D., & Maple, M. B. (2020). Quadrupolar susceptibility and magnetic phase diagram of PrNi2Cd20 with non-Kramers doublet ground state. Philosophical Magazine, 100(10), 1268-1281. https://doi.org/10.1080/14786435.2019.1709912