Labeling interacting configurations through an analysis of excitation dynamics in a resonant photoemission experiment: the case of rutile TiO2

被引:13
作者
Drera, G. [1 ,2 ]
Sangaletti, L. [1 ,2 ]
Bondino, F. [3 ]
Malvestuto, M. [4 ]
Malavasi, L. [5 ]
Diaz-Fernandez, Y. [5 ]
Dash, S. [1 ,2 ]
Mozzati, M. C. [6 ,7 ]
Galinetto, P. [6 ,7 ]
机构
[1] Univ Cattolica, I LAMP, I-25121 Brescia, Italy
[2] Univ Cattolica, Dipartimento Matemat & Fis, I-25121 Brescia, Italy
[3] IOM CNR, Lab TASC, I-34149 Basovizza, Italy
[4] Sincrotrone Trieste, I-34149 Basovizza, Italy
[5] Univ Pavia, Dipartimento Chim, I-27100 Pavia, Italy
[6] Univ Pavia, CNISM, I-27100 Pavia, Italy
[7] Univ Pavia, Dipartimento Fis, I-27100 Pavia, Italy
关键词
CHARGE-TRANSFER; 2P; METAL; SURFACE; EDGES;
D O I
10.1088/0953-8984/25/7/075502
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
A detailed study of resonant photoemission at Ti L-2,L-3 edges of insulating rutile TiO2-x thin film is presented. Pure TiO2 resonating structures, defect-related resonances, resonant Raman-Auger and normal LVV Auger emissions are tracked, including an unpredicted two-hole correlated satellite below the non-bonding part of the valence band. The analysis of excitation dynamics unambiguously addresses the origin of these features and, in particular, the extent of charge transfer effects on the Ti-O bonding in the valence band of rutile, disclosing further applications to the more general case of, formally, d(0) oxides.
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收藏
页数:7
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