Theory of Angle-Resolved X-Ray Photoemission by Multiple Scattering Cluster Method. III. : Effects of Potential and Damping
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概要
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Tlae ARXPS forxt?ula derix'ed from tltc first )criuacijales xnauay-body t1?eory is ajc)aliedto two different aclsorbed s)'stexns Si (111 )-( N/ 3 X x"3 )Ga and Sll, to study tlteir Ga 2pand Sn 3d s)aectra. Special em)claasis is )claced on tltc eITects of )>otentials to calcttlatethe scatterixtg jcltase slaifts. Txvo static potentials are used here; tlte NX'atson's xaeutralpuslaed back cltarge potential axad tlte cr)'slal poteualjal. Beyouad tlte static a)c)croxittaa-tioua, w'e also investigate tl?e o)ctical polexatial. Nut [l?e forward scattering the o)ctical?cotential plays an intportax?t role for Ga 21) s?rectr;t (365 eV), but it is not so Nun)cortautt for Sn 3d s)cectra (765 eV) because of tlae l?igIt eutergy scatteriutg. In Live large-angle scattering tlte poteu?tials jclay a mixaor role. Ollaer factors sucla as electroxt darttjv-ing, tlaermal vibration, a fitaite acceptance auagle auvcl cltarge tx'amtsfer betxx'eer? adatotnsautd substrate atoms are also discussed. We fiutd t]?at tlte first axtd the tltird factoz'splay 811 important role to reduce tl?e axaisotx-ojcy but tlte xttain features are tanc)aangedby tltese factors. Iuvterlayer distautce betxveet? tlte ztdsoz'bed Sn layer azrd live first Silayer is predicted to be 1.8 - 2.0 A fromm fate jcresertt ARXPS axaalyses.
- 社団法人日本物理学会の論文
- 1992-07-15
著者
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Saito Akira
Faculty of Agriculture, Kyushu University
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Fujikawa Takashi
Faculty Of Agriculture Shizuoka University
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