Local density of states analysis by Auger electron spectroscopy

1995 ◽  
Vol 13 (4) ◽  
pp. 2013-2017 ◽  
Author(s):  
Huijian Zhou ◽  
Yuqi Wang ◽  
Wei Ho
Keyword(s):  
Auger Electron Spectroscopy ◽  
Density Of States ◽  
Electron Spectroscopy ◽  
Auger Electron ◽  
Local Density ◽  
Local Density Of States

scholarly journals The Effect of Stress in the Density of States of Amorphous Carbon Films Determined by X-Ray Excited Auger Electron Spectroscopy

2017 ◽  
Vol 2017 ◽  
pp. 1-5 ◽  
Author(s):  
P. F. Barbieri ◽  
F. C. Marques
Keyword(s):  
Auger Electron Spectroscopy ◽  
Density Of States ◽  
Amorphous Carbon ◽  
Electron Spectroscopy ◽  
Auger Electron ◽  
Ion Beam ◽  
Carbon Films ◽  
Film Stress ◽  
Amorphous Carbon Films ◽  
X Ray

Amorphous carbon films can be prepared with a large variety of structure and have been used in a number of technological applications. Many of their properties have been determined, but very little is known concerning the effect of pressure on their properties. In this work we investigate the influence of pressure of graphite-like amorphous carbon films on the density of states (DOS) using X-ray Excited Auger Electron Spectroscopy (XAES) and the second derivate method of the XAES. The films were deposited by ion beam deposition and simultaneously bombarded with argon, which is responsible for the variation of the film stress, reaching extremely high values (4.5 GPa). Marked variations of the density of states of the pπ, pσ, sp, and s components were observed with increasing stress.

The formation of low temperature Cu3Si in Ag(Cu)/Si structure upon annealing and its effects on adhesion and resistivity

2003 ◽  
Vol 766 ◽  
Author(s):  
Sungjin Hong ◽  
Seob Lee ◽  
Yeonkyu Ko ◽  
Jaegab Lee
Keyword(s):  
Low Temperature ◽  
Auger Electron Spectroscopy ◽  
Electron Spectroscopy ◽  
Auger Electron ◽  
Si Substrate ◽  
Copper Silicide ◽  
Alloy Films ◽  
Cu Alloy ◽  
Cu Film ◽  
Rapid Drop

AbstractThe annealing of Ag(40 at.% Cu) alloy films deposited on a Si substrate at 200 – 800 oC in vacuum has been conducted to investigate the formation of Cu3Si at the Ag-Si interface and its effects on adhesion and resistivity of Ag(Cu)/Si structure. Auger electron spectroscopy(AES) analysis showed that annealing at 200°C allowed a diffusion of Cu to the Si surface, leading to the significant reduction in Cu concentration in Ag(Cu) film and thus causing a rapid drop in resistivity. In addition, the segregated Cu to the Si surface reacts with Si, forming a continuous copper silicide at the Ag(Cu)/Si interface, which can contribute to an enhanced adhesion of Ag(Cu)/Si annealed at 200 oC. However, as the temperature increases above 300°C, the adhesion tends to decrease, which may be attributed to the agglomeration of copper silicide beginning at around 300°C.

Sign in / Sign up

Export Citation Format

Share Document