High resolution photoemission and Auger parameter studies of electronic structure of tin oxides

1995 ◽  
Vol 13 (3) ◽  
pp. 1382-1388 ◽  
Author(s):  
L. Kövér ◽  
G. Moretti ◽  
Zs. Kovács ◽  
R. Sanjinés ◽  
I. Cserny ◽  
...  
Keyword(s):  
Electronic Structure ◽  
High Resolution ◽  
Auger Parameter ◽  
Tin Oxides

Electronic structure of tin oxides: High-resolution study of XPS and Auger spectra

1995 ◽  
Vol 23 (7-8) ◽  
pp. 461-466 ◽  
Author(s):  
L. Kövér ◽  
Zs. Kovács ◽  
R. Sanjinés ◽  
G. Moretti ◽  
I. Cserny ◽  
...  
Keyword(s):  
Electronic Structure ◽  
High Resolution ◽  
Tin Oxides ◽  
Auger Spectra ◽  
Resolution Study

scholarly journals High-resolution x-ray spectroscopic study of the electronic structure of the prototypicalp-type transparent conducting oxideCuAlO2

2005 ◽  
Vol 72 (19) ◽  
Author(s):  
D. J. Aston ◽  
D. J. Payne ◽  
A. J. H. Green ◽  
R. G. Egdell ◽  
D. S. L. Law ◽  
...  
Keyword(s):  
Electronic Structure ◽  
High Resolution ◽  
Spectroscopic Study ◽  
X Ray ◽  
Transparent Conducting

Electronic structure of hexafluorobenzene by high-resolution vacuum ultraviolet photo-absorption and He(I) photoelectron spectroscopy

2006 ◽  
Vol 328 (1-3) ◽  
pp. 183-189 ◽  
Author(s):  
C. Motch ◽  
A. Giuliani ◽  
J. Delwiche ◽  
P. Limão-Vieira ◽  
N.J. Mason ◽  
...  
Keyword(s):  
Electronic Structure ◽  
High Resolution ◽  
Photoelectron Spectroscopy ◽  
Vacuum Ultraviolet

The Electronic Structure of Interstitial Iron in Silicon

1989 ◽  
Vol 163 ◽  
Author(s):  
A Thilderkvist ◽  
G Grossmann ◽  
M Kleverman ◽  
H G Grimmeiss
Keyword(s):  
Magnetic Field ◽  
Electronic Structure ◽  
High Resolution ◽  
Effective Mass ◽  
Level Structure ◽  
Zeeman Splitting ◽  
Iron Impurity ◽  
Doped Silicon ◽  
Donor States ◽  
Bound Electron

AbstractA donor-like spectrum in Fe-doped silicon has been studied by means of high-resolution Zeeman spectroscopy. Previous work had unambigouosly identified the center as the interstitial iron impurity and the spectrum was interpreted as due to the transitions , where an electron is excited to shallow effective-masslike donor states. In this paper, we can, by studying the transitions in a magnetic field, verify the effective-mass-like character of the loosely bound electron. Furthermore, we also obtain information on the impurity core whose level structure is reflected in the observed superposition of donor-hke Rydeberg series and whose g values determines the Zeeman splitting pattern.

Electronic Structure and Surface Science of delta Plutonium

2003 ◽  
Vol 802 ◽  
Author(s):  
M. Butterfield ◽  
T. Durakiewicz ◽  
E. Guziewicz ◽  
J. J. Joyce ◽  
D. P. Moore ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Laser Ablation ◽  
High Resolution ◽  
Valence Band ◽  
Surface Science ◽  
Photoelectron Spectroscopy ◽  
Room Temperature ◽  
Instrument Resolution ◽  
Δ Phase

AbstractHigh resolution photoelectron spectroscopy (PES) studies were conducted on a δ-phase Plutonium sample cleaned by laser ablation and gas dosed with O2 and H2. The measurements were made with an instrument resolution of 60 meV and with the sample at 77 K. The PES data strongly support a model with Pu2O3 growth on the metal and then PuO2 growth on the Pu2O3 layer at this temperature. In vacuum, the PuO2 reduces to Pu2O3 at room temperature with a pressure of 6×10−11 Torr. In the case of H2 dosing the hydrogen appears to penetrate the surface and disrupt the valence band as evidenced by a drop in intensity of the peak at EF which is not accompanied by a drop in the main 5f manifold at ∼2eV.

First Principles Calculations for Metal/Ceramic Interfaces

1994 ◽  
Vol 357 ◽  
Author(s):  
M. W. Finnis ◽  
C. Kruse ◽  
U. SchÖnberger
Keyword(s):  
Electronic Structure ◽  
High Resolution ◽  
Ab Initio ◽  
First Principles ◽  
Density Functional ◽  
Local Density ◽  
Work Of Adhesion ◽  
First Principles Calculations ◽  
Resolution Electron ◽  
Metal Ceramic

AbstractWe discuss the recent first principles calculations of the properties of interfaces between metals and oxides. This type of calculation is parameter-free, and exploits the density functional theory in the local density approximation to obtain the electronic structure of the system. At the same time the equilibrium atomic structure is sought, which minimises the excess energy of the interface. Up to now calculations of this type have been made for a few model interfaces which are atomically coherent, that is with commensurate lattices. Examples are Ag/MgO and Nb/Al2O3. In these cases it has been possible to predict the structures observed by high resolution electron microscopy. The calculations are actually made in a supercell geometry, in which there are alternating nanolayers of metal and ceramic. Because of the effectiveness of metallic screening in particular, the interfaces between the nanolayers do not interfere much with each other.Besides the electronic structure of the interface, such calculations have provided values of the ideal work of adhesion. Electrostatic image forces in conjunction with the elementary ionic model provide a simple framework for understanding the results.An important role of such calculations is to develop intuition about the nature of the bonding, including the effects of charge transfer, which has formerly only been described in an empirical way. It may then be possible to build atomistic models of the metal/ceramic interaction which have a sound physical basis and can be calibrated against ab initio results. Simpler models are necessary if larger systems, including misfit dislocations and other defects, are to be simulated, with a view to understanding the atomic processes of growth and failure. Another area in which ab initio calculations can be expected to contribute is in the chemistry of impurity segregation and its effect at interfaces. Such theoretical tools are a natural partner to the experimental technique of high resolution electron energy loss spectroscopy for studying the local chemical environment at an interface.

High resolution molecular photoelectron spectroscopy II. Water and deuterium oxide

1968 ◽  
Vol 307 (1488) ◽  
pp. 27-36 ◽  
Keyword(s):  
Electronic Structure ◽  
Fine Structure ◽  
High Resolution ◽  
Photoelectron Spectroscopy ◽  
Deuterium Oxide ◽  
Molecular Orbitals ◽  
Ionization Potentials ◽  
Bonding Characteristics

Helium 584 Å radiation produces photoeleetron spectra from water and deuterium oxide, which show extensive vibrational fine structure. The results are discussed in terms of the electronic structure of the molecule, and the bonding characteristics of the various molecular orbitals. Water is inferred to have only three configurationally distinct ionization potentials smaller than 21.22 eV.

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