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Electron spin resonance of Er3+ in YBiPt

  • Author(s): Martins, GB;
  • Rao, D;
  • Barberis, GE;
  • Rettori, C;
  • Duro, RJ;
  • Sarrao, J;
  • Fisk, Z;
  • Oseroff, S;
  • Thompson, JD
  • et al.
Abstract

Electron spin resonance (ESR) experiments at 4.15 K of Er3+ in YBiPt show that Er3+ is in a site of cubic local symmetry, with a Γ(3)8 ground state and an overall crystal field splitting of ∼ 85(10) K. We inferred from the spectra the existence of lattice distortions at the rare-earth (RE) site. These results may help in understanding the heavy-fermion system YbBiPt, which has the same structure as YBiPt.

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