Band Structure Effects in Ejection of Ni Atoms in Fine Structure States
1995; American Physical Society; Volume: 75; Issue: 21 Linguagem: Inglês
10.1103/physrevlett.75.3950
ISSN1092-0145
AutoresChun He, Zbigniew Postawa, S. W. Rosencrance, R. Chatterjee, B. J. Garrison, Nicholas Winograd,
Tópico(s)Advanced Materials Characterization Techniques
ResumoKinetic energy distributions of Ni atoms in six electronic fine structure states ejected from a single crystal Ni{001} surface due to bombardment with 5 keV ${\mathrm{Ar}}^{+}$ ions have been measured. These states arise from two different electronic configurations, $3{d}^{8}4{s}^{2}{a^{3}F_{4,3,2}}$ and $3{d}^{9}4{s}^{1}{a^{3}D_{3,2} or a^{1}D_{2}}$, which form three distinct fine structure manifolds within 0.422 eV of the $^{3}F_{4}$ ground state. We find that the band structure effects dominate leading to larger populations in the excited $^{3}D_{3,2}$ states than found for the ground state.
Referência(s)