Electronic excitations in the transition metals V, Zr, Nb, Mo, and Ta

Journal Article · Sun Mar 01 04:00:00 EST 1987 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.35.3062· OSTI ID:6838912

Cornaz, A; Erbudak, M; Aebi, P; Stucki, F; Vanini, a F

The np core-loss spectra and the associated deexcitation processes for the transition metals V (n = 3), Zr, Nb, Mo (n = 4), and Ta (n = 5) have been studied in low-energy electron scattering experiments in order to investigate the dependence of their nature on the principle quantum number n. For the metals with n = 3 and n = 4, the measurements are accounted for in terms of atomic transitions involving the excitation and the decay of localized d electrons. The observations on V can qualitatively be compared with published computations for isolated atoms. While the 5p core excitations for Ta resemble the gross features of the unoccupied d-band density of states, the decay processes involve, besides the conventional O/sub 2/VV and O/sub 3/VV Auger transitions, autoionization emission related to 5p/sup 6/5d/sup N/-5p/sup 5/5d/sup N//sup +1/-5p/sup 6/5d/sup N//sup -1/+epsilonf transitions.

• Research Organization: Institut fuer Angewandte Physik, Eidgenoessische Technische Hochschule Zuerich, CH-8093 Zuerich, Switzerland
• OSTI ID: 6838912
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 35:7; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

640301* -- Atomic
Molecular & Chemical Physics-- Beams & their Reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AUGER EFFECT
AUTOIONIZATION
COLLISIONS
D STATES
ELECTRON COLLISIONS
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
IONIZATION
METALS
MOLYBDENUM
NIOBIUM
P STATES
TANTALUM
TRANSITION ELEMENTS
VANADIUM
ZIRCONIUM