Resonance photoemission at the 2p excitation threshold of Ni{sub 3}Al
Book
·
OSTI ID:474586
- National Chang-Hua Univ. of Education (Taiwan, Province of China). Dept. of Physics
- Synchrotron Radiation Research Center, Hsinchu (Taiwan, Province of China)
A marked resonance enhancement of the 3d photoemission intensity in angle-integrated electron-distribution curves from Ni{sub 3}Al has been observed 6.6 eV below the Fermi level for photon energies in the vicinity of the Ni 2p absorption threshold. Soft x-ray L-edge absorption spectra were measured to determine the Ni 2p excitation threshold. The Fano asymmetry parameter and the effective Coulomb interaction for Ni{sub 3}Al are 2.2 and 4.8 eV, respectively, as derived from the experimental data. Differences between the 2p {r_arrow} 3d and the 3p {r_arrow} 3d resonance effect are discussed, and comparisons with Ni, NiAl, and NiGa are made.
- Sponsoring Organization:
- National Science Council, Taipei (Taiwan, Province of China)
- OSTI ID:
- 474586
- Report Number(s):
- CONF-960401--; ISBN 1-55899-340-1
- Country of Publication:
- United States
- Language:
- English
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