Al L/sub 2,3/ and Mg double-ionization emission spectra of dilute Al in Mg alloys

Journal Article · Mon Feb 15 04:00:00 EST 1988 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.37.2401· OSTI ID:5743073

Zhang, C H; Tsang, K h; Callcott, T A; Ederer, D L; Arakawa, E T

The Al L/sub 2,3/ spectrum for dilute alloys of Al in Mg, and the Mg L satellite spectrum produced by transitions in atoms with doubly ionized 2p core levels have been measured. The two spectra contain similar features associated with screening of the extra core hole, but are otherwise dissimilar, which suggests that the equivalent-core approximation is not valid. The threshold peak is broadened in both spectra. The Al-impurity spectrum is found to be about 1 eV wider than that of the Mg host. The L/sub 3/-L/sub 1/ intercore transition in doubly ionized Mg is observed. Finally, a second, weak, high-energy satellite of Mg is observed that may be produced by transitions from the /sup 1/S/sub 0/ state of the doubly ionized core levels. These results provide important new data for comparison with theories of the electronic states of impurity atoms in metals.

• Research Organization: University of Tennessee, Knoxville, Tennessee 37996
• OSTI ID: 5743073
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 37:5; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
ALUMINIUM ALLOYS
CHEMICAL ANALYSIS
DILUTE ALLOYS
ELECTRONIC STRUCTURE
EMISSION SPECTRA
ENERGY-LEVEL TRANSITIONS
FINE STRUCTURE
INNER-SHELL IONIZATION
IONIZATION
L SHELL
MAGNESIUM ALLOYS
MAGNESIUM BASE ALLOYS
NONDESTRUCTIVE ANALYSIS
SPECTRA
X-RAY EMISSION ANALYSIS