Decay channels of core excitation resonances in 3d and 4f metal atoms

Valence-Band Dispersion in Angle-Resolved Resonant Photoemission from LaSb

“…This is supported by a theoretical study by Zangwill and co-workers [3,6], who calculated the cross sections for the emission of photoelectrons from various subshells, e.g., 4f, 5d, 6s, after photoexcitation of a 4d electron of the Ce atom. Subsequently these cross sections were measured in Ce and La vapor by Meyer and co-workers [19,20] with good, but not perfect, agreement. Zangwill found that as one scanned through the 4d photoexcitation from low photon energy to high, the subshell emission resonances peaked at increasing energies as the average radius of the subshell electrons decreased.…”

Photoabsorption of Fe, Co, and Ni atoms embedded in Al-clusters near 3p-ionization threshold of impurity

“…In the employed method the occupation numbers of electronic states are input parameters for the set of selfconsistent equations (1,5,6). The rule for the energy level occupation separately in a free atom and in jellium (in a spherical potential well) are well known.…”

“…= 2.98 a.u.). For the local exchange-correlation potential V2c(r) we used the form proposed by Vosko et al [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20].…”

“…In photoionization cross sections of atomic 3d metals there are strong asymmetric peaks below the 3p ionization threshold [1]. These resonances are interpreted as autoionization ones and ascribed to 3 p--+ 3 d excitations which decay via the ionization of 3d electrons [1,2].…”

“…These resonances are interpreted as autoionization ones and ascribed to 3 p--+ 3 d excitations which decay via the ionization of 3d electrons [1,2]. The autoionization is due to the large overlap (hence, the strong interaction) between 3p and partially filled 3 d subshells.…”