Structural and Physical Properties of CeAu2Bi: a New Frustrated Antiferromagnet Candidate

ORAL

Abstract

Ce-based compounds often display emergent phenomena due to the interplay between competing magnetic interactions, crystalline electrical field (CEF) effects, and the Kondo effect. Here we report the structural and physical properties of the new heavy-fermion compound CeAu2Bi. CeAu2Bi crystallizes in a hexagonal structure (P63/mmc) with lattice parameters of a = 4.8867(5) Å and c = 9.3748(13) Å. This structure presents Ce planes containing a triangular lattice, which has the potential of displaying geometrical frustration. Antiferromagnetic ordering, however, takes place at TN = 3.1 K, and is enhanced as a function of pressure, reaching 4.2 K at 18 kbar. We discuss our experimental results in the light of band structure calculations.

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Presenters

  • Mario Moda Piva

    Universidade Estadual de Campinas

Authors

  • Mario Moda Piva

    Universidade Estadual de Campinas

  • Filip Ronning

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA, Los Alamos National Laboratory, MPA-CMMS, Los Alamos National Laboratory, Los Alamos, USA, MPA-CMMS, Los Alamos National Laboratory, Los Alamos National Laboratory, Los Alamos, New Mexico, USA, Los Alamos National Labs

  • Joe D Thompson

    Los Alamos National Laboratory, MPA-CMMS, Los Alamos National Laboratory, Los Alamos, USA, MPA-CMMS, Los Alamos National Laboratory, Condensed Matter and Magnet Sciences, Los Alamos National Laboratory

  • Pascoal Pagliuso

    Universidade Estadual de Campinas

  • Priscila Rosa

    Los Alamos National Laboratory, MPA-CMMS, Los Alamos National Laboratory, Los Alamos, USA, Condensed Matter and Magnet Sciences, Los Alamos National Laboratory