title: Photon-stimulated ion desorption from molybdenum oxides following Mo 2p3/2 excitation.
abstract: Photon-stimulated ion desorption from solid MoO3 following the Mo 2p3/2 resonant transition has been investigated. In the XANES spectrum, Mo 2p3/2 peak is split into two components corresponding to the excitations from Mo 2p3/2 into the t2g and e(g) orbitals. It was observed that the desorption yield of O+ ions at the Mo 2p3/2-->e(g) resonance is higher than that at the Mo 2p3/2-->t2g resonance. The Auger decay spectra reveal that there exist two kinds of spectator Auger decays. The high desorption yield at the 2p3/2-->e(g) resonance is interpreted by the fast breaking of the Mo-O bond due to the localization of the electrons in the highly antibonding e(g).
authors.affiliation: Synchrotron Radiation Research Center, Japan Atomic Energy Research Institute, Ibarakiken. ghwu@ustc.edu.cn
authors.forename: G
authors.initials: G
authors.lastname: Wu
authors.forename: Y
authors.initials: Y
authors.lastname: Baba
authors.forename: T
authors.initials: T
authors.lastname: Sekiguchi
authors.forename: I
authors.initials: I
authors.lastname: Shimoyama