scholarly journals Core-hole effects in the x-ray-absorption spectra of transition-metal silicides

1990 ◽  
Vol 41 (17) ◽  
pp. 11899-11910 ◽  
Author(s):  
P. J. W. Weijs ◽  
M. T. Czyżyk ◽  
J. F. van Acker ◽  
W. Speier ◽  
J. B. Goedkoop ◽  
...  
Keyword(s):  
Transition Metal ◽  
Absorption Spectra ◽  
Core Hole ◽  
X Ray ◽  
Metal Silicides ◽  
X Ray Absorption

Core-hole effects in x-ray-absorption spectra of fullerenes

1999 ◽  
Vol 60 (11) ◽  
pp. 7956-7960 ◽  
Author(s):  
Mats Nyberg ◽  
Yi Luo ◽  
Luciano Triguero ◽  
Lars G. M. Pettersson ◽  
Hans Ågren
Keyword(s):  
Absorption Spectra ◽  
Core Hole ◽  
X Ray ◽  
X Ray Absorption

Conduction band states of transition metal (TM) high-k gate dielectrics as determined from X-ray absorption spectra

2005 ◽  
Vol 45 (5-6) ◽  
pp. 827-830 ◽  
Author(s):  
G. Lucovsky ◽  
J.G. Hong ◽  
C.C. Fulton ◽  
N.A. Stoute ◽  
Y. Zou ◽  
...  
Keyword(s):  
Transition Metal ◽  
Absorption Spectra ◽  
Conduction Band ◽  
Gate Dielectrics ◽  
X Ray ◽  
High K ◽  
X Ray Absorption

CORE-HOLE EFFECT IN THE Ce L3 X-RAY ABSORPTION SPECTRA OF CeO2 AND CeFe2: NEW EXAMINATION BY USING RESONANT X-RAY EMISSION SPECTROSCOPY

2013 ◽  
Vol 27 (16) ◽  
pp. 1330012 ◽  
Author(s):  
A. KOTANI
Keyword(s):  
Absorption Spectra ◽  
Ground State ◽  
Theoretical Calculations ◽  
Emission Spectra ◽  
Core Hole ◽  
Final State ◽  
X Ray ◽  
The Core ◽  
X Ray Absorption ◽  
Hole Effect

We consider two different resonant X-ray emission spectra for Ce compounds: Ce 3d to 2p X-ray emission (denoted by 3d-RXES) and valence to 2p X-ray emission (v-RXES), both of which follow the Ce 2p to 5d resonant excitation. We propose that the comparison of the 3d- and v-RXES spectra is a new powerful method of directly detecting the core-hole effect in the final state of Ce L 3 X-ray absorption spectra (XAS). We applied this method to recent experimental RXES spectra for CeO 2 and CeFe 2, and showed unambiguously that the core-hole effect should be essential in the XAS of both materials. This result is confirmed by theoretical calculations, which reproduce well the experimental RXES and XAS spectra. We conclude that the ground state of CeO 2 is in the mixed state of 4f0 and [Formula: see text] configurations, where [Formula: see text] is a ligand hole, instead of a pure 4f0 configuration which was proposed recently by first-principles energy band calculations. Also, we conclude that the double peaks observed in L 3 XAS of CeFe 2 are caused by the 4f0 and 4f1 configurations, which are mixed in the ground state but separated in energy by the large core-hole potential in the final state of XAS.

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