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Resonant valence-band satellites at the Ni-3p edge of Ni{sub 3}Al, Ni{sub 3}Ga and Ni{sub 3}In

Journal Article · · International Journal of Modern Physics B
OSTI ID:355641
 [1]; ;  [2]
  1. National Chang-Hua Univ. of Education (Taiwan, Province of China). Dept. of Physics
  2. Synchrotron Radiation Research Center, Hsinchu (Taiwan, Province of China)
Valence-band photoemission spectra of Ni{sub 3}Al, Ni{sub 3}Ga and Ni{sub 3}In were measured with synchrotron radiation at photon energies around the Ni-3p core excitation threshold. The valence-band satellites are resonantly enhanced. The number of holes per Ni atom in the Ni-D band for Ni{sub 3}Al, Ni{sub 3}Ga and Ni{sub 3}In is estimated to be 0.37, 0.30 and 0.34, respectively. The self-energy correction due to the configuration interaction is 0.72, 0.71 and 0.72 eV, respectively, for Ni{sub 3}Al, Ni{sub 3}Ga and Ni{sub 3}In. The Fano parameters and the effective Coulomb interactions between two 3D holes for these intermetallic compounds are determined.
OSTI ID:
355641
Journal Information:
International Journal of Modern Physics B, Journal Name: International Journal of Modern Physics B Journal Issue: 26 Vol. 12; ISSN IJPBEV; ISSN 0217-9792
Country of Publication:
United States
Language:
English