The relative importance of vibrational and ligand field splittings on core d-level photoelectron and NVV Auger spectra: high resolution core level photoelectron spectrum of the I 4d level of HI

1991 ◽  
Vol 24 (23) ◽  
pp. 4987-4992 ◽  
Author(s):  
J N Cutler ◽  
G M Bancroft ◽  
K H Tan
1979 ◽  
Vol 40 (C1) ◽  
pp. C1-14-C1-16
Author(s):  
P. Bisgaard ◽  
R. Bruch ◽  
M. Rødbro

2000 ◽  
Vol 166 (1-4) ◽  
pp. 214-219 ◽  
Author(s):  
P De Padova ◽  
R Larciprete ◽  
C Quaresima ◽  
A Reginelli ◽  
P Perfetti

1984 ◽  
Vol 17 (8) ◽  
pp. L259-L264 ◽  
Author(s):  
B Wannberg ◽  
H Veenhuizen ◽  
L Mattsson ◽  
K -E Norell ◽  
L Karlsson ◽  
...  

1987 ◽  
Vol 2 (6) ◽  
pp. 768-774 ◽  
Author(s):  
Z. Iqbal ◽  
E. Leone ◽  
R. Chin ◽  
A. J. Signorelli ◽  
A. Bose ◽  
...  

The x-ray photoemission spectroscopie (XPS) data from different pelletized samples of the 90 K superconductor Ba2YCu3O7−δ (where δ∼0.2) have been obtained. The valence band spectrum (recorded at 300 and 170 K), which is composed of contributions from both the Cu 3d and O 2p levels, is compared with the full potential linearized augmented plane wave (FLAPW) calculated electronic density-of-states (DOS) reported by Massidda et al. and Mattheiss and Hamann. The experimental data indicate a relatively low DOS at the Fermi level. Detailed measurements of the core level Cu 2p, O 1s, Ba 3d, 4d, and Y 3d spectra of the superconducting and related standard materials, are presented. Data for the superconducting material were recorded in the freshly prepared form as well as after scraping in situ. The Cu 2p core level, satellite, and Auger spectra for the various samples were carefully examined in order to assess the possibility of the presence of Cu3+ ions in Ba2YCu3O7-δ. It is observed that surface reaction in air to form carbonates and hydroxides occurs readily in the superconducting material.


1993 ◽  
Vol 284 (1-2) ◽  
pp. L384-L388 ◽  
Author(s):  
T.M. Grehk ◽  
C.U.S. Larsson ◽  
N.P. Prince ◽  
S.A. Flodström
Keyword(s):  

2001 ◽  
Vol 280 (1-3) ◽  
pp. 150-155 ◽  
Author(s):  
Florence Jolly ◽  
François Rochet ◽  
Georges Dufour ◽  
Christoph Grupp ◽  
Amina Taleb-Ibrahimi

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