Electron spectroscopy study of the Cu/SrTiO3(100) interface

被引：16
作者：
Conard, T
Rousseau, AC
Yu, LM
Ghijsen, J
Sporken, R
Caudano, R
Johnson, RL
机构：
[1] FAC UNIV NOTRE DAME PAIX,LAB INTERDISCIPLINAIRE SPECT ELECT,B-5000 NAMUR,BELGIUM
[2] UNIV HAMBURG,INST EXPTL PHYS 2,D-27761 HAMBURG,GERMANY
来源：
SURFACE SCIENCE | 1996年 / 359卷 / 1-3期
关键词：
clusters; copper; electron energy loss spectroscopy; growth; low index single crystal surfaces; metallic films; metal-insulator interfaces; strontium titanate; X-ray photoelectron spectroscopy;
D O I：
10.1016/0039-6028(96)00344-5
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Interface formation of copper on both reduced and stoichiometric SrTiO3(100) was investigated using photoemission (XPS, UPS), electron diffraction (LEED) and electron energy loss spectroscopy (HREELS). The growth mode of Cu on both surfaces involves the formation of a 2D-like layer and islands, but the thickness of the 2D-like layer and the number of islands is higher on the reduced substrate due to the higher number of defects. An analysis of the Auger parameter of Cu during growth demonstrates the strong interaction of Cu with SrTiO3. HREELS experiments showed a strong influence of the impact scattering interaction from the changes in the spectra with coverage, and the importance of the two different terminations of the (100) surface.
引用
收藏
页码：82 / 92
页数：11
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