Systematics of the rare-gas core contributions to the positron annihilation spectra of some simple and transition metals
1985; Elsevier BV; Volume: 53; Issue: 3 Linguagem: Inglês
10.1016/0038-1098(85)90046-8
ISSN1879-2766
Autores Tópico(s)Ammonia Synthesis and Nitrogen Reduction
ResumoAbstract Taking into account the core electron enhancement factor the rare-gas core contribution to the angular correlation positron annihilation spectra and to the total annihilation rate in some simple and transition metals are calculated. It is shown that the valence high-momentum part of the Gaussian fraction is not negligible in simple metals. In 3 d and 4 d metals, the rare-gas core part of the total annihilation rate amounts from 9 to 37%. The results are expected to help in the correct interpretation of the positron annihilation data.
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