Photon‐stimulated ion desorption from molybdenum oxides following Mo 2 p  3/2  excitation | Zendy

Wu Guohua | Zendy; Baba Yuji | Zendy; Sekiguchi Tetsuhiro | Zendy; Shimoyama Iwao | Zendy

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Photon‐stimulated ion desorption from molybdenum oxides following Mo 2 p 3/2 excitation

Author(s) -

Wu Guohua,

Baba Yuji,

Sekiguchi Tetsuhiro,

Shimoyama Iwao

Publication year - 2001

Publication title -

journal of synchrotron radiation

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.172

H-Index - 99

ISSN - 1600-5775

DOI - 10.1107/s0909049500017209

Subject(s) - antibonding molecular orbital , ion , desorption , molybdenum , yield (engineering) , auger , resonance (particle physics) , atomic physics , excitation , auger effect , auger electron spectroscopy , analytical chemistry (journal) , chemistry , atomic orbital , electron , materials science , physics , inorganic chemistry , adsorption , organic chemistry , quantum mechanics , chromatography , nuclear physics , metallurgy

Photon‐stimulated ion desorption from solid MoO3 following the Mo 2p 3/2 resonant transition has been investigated. In the XANES spectrum, Mo 2p 3/2 peak is split into two components corresponding to the excitations from Mo 2p 3/2 into the t 2g and eg orbitals. It was observed that the desorption yield of O+ ions at the Mo 2p 3/2 ⇒ e g resonance is higher than that at the Mo 2p 3/2 ⇒ t 2g resonance. The Auger decay spectra reveal that there exist two kinds of spectator Auger decays. The high desorption yield at the 2p 3/2 ⇒ 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 .

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