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Title: Neutron scattering study on f-electron states in PrCu4Au

Neutron scattering studies were carried out for investigating heavy-electron-like behaviors of PrCu4Au. Excitation spectra are composed of crystal-field (CF) excitations in the Pr3+4f2 electron configuration and a broad component. The CF splitting ground state is a triplet 5. The type-II antiferromagnetic ordering characterized by the propagation vector (1/2, 1/2, 1/2) appears below approximately 4 K. The powder diffraction pattern is reproduced by the ordered magnetic moments aligning along the direction perpendicular to the propagation vector. The magnitude of the ordered magnetic moment is evaluated as 1.36uB/Pr, which is less than 2.0uB/Pr expected from the 5 ground state. Dual electronic states of both localized and itinerant character are inferred.
 [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [3] ;  [4] ;  [4] ;  [5] ;  [6] ;  [6] ;  [6]
  1. Tohoku University, Japan
  2. Hiroshima University, Japan
  3. Toyama University, Japan
  4. Laboratoire Leon Brillouin, France
  5. KEK, Tsukuba, Ibaraki, Japan
  6. ORNL
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Conference: Int. Conf. Strongly Correlated Electron Systems (SCES2013), Tokyo, Japan, 20130805, 20130809
Research Org:
Oak Ridge National Laboratory (ORNL); Spallation Neutron Source
Sponsoring Org:
SC USDOE - Office of Science (SC)
Country of Publication:
United States