Abstract
Site-specific valence-band X-ray photoelectron spectra of SrTiO3 (111) were successfully obtained by using X-ray standing wave technique. Contributions of the Ti and SrO3 derived states to the valence-band spectra were clearly separated. The spectra provided not only site-specific but also bulk-sensitive information on the SrTiO3 crystal because of the use of a high-energy synchrotron X-ray source (hν=4750 eV) for photoelectron excitation with the large escape depth. The electronic structures calculated by the DV-Xα method using a (Sr8Ti27O 108)92- cluster model well reproduced the observed structures in the valence-band spectra. The partial density of states of both Ti and Sr ions in SrTiO3 were mainly distributed over the bottom of the valence-band to produce the covalent bonding with O ions.
| Original language | English |
|---|---|
| Pages (from-to) | 375-379 |
| Number of pages | 5 |
| Journal | Solid State Communications |
| Volume | 136 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - Nov 2005 |
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Keywords
- A. Ferroelectrics
- D. Electronic states (localized)
- E. Photoelectron spectroscopies
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
Cite this
Site-specific valence-band X-ray photoelectron spectra of a SrTiO 3 single-crystal by X-ray standing wave technique. / Fujii, Tatsuo; Kimura, Masahiro; Yoshikawa, Hideki; Fukushima, Sei.
In: Solid State Communications, Vol. 136, No. 7, 11.2005, p. 375-379.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Site-specific valence-band X-ray photoelectron spectra of a SrTiO 3 single-crystal by X-ray standing wave technique
AU - Fujii, Tatsuo
AU - Kimura, Masahiro
AU - Yoshikawa, Hideki
AU - Fukushima, Sei
PY - 2005/11
Y1 - 2005/11
N2 - Site-specific valence-band X-ray photoelectron spectra of SrTiO3 (111) were successfully obtained by using X-ray standing wave technique. Contributions of the Ti and SrO3 derived states to the valence-band spectra were clearly separated. The spectra provided not only site-specific but also bulk-sensitive information on the SrTiO3 crystal because of the use of a high-energy synchrotron X-ray source (hν=4750 eV) for photoelectron excitation with the large escape depth. The electronic structures calculated by the DV-Xα method using a (Sr8Ti27O 108)92- cluster model well reproduced the observed structures in the valence-band spectra. The partial density of states of both Ti and Sr ions in SrTiO3 were mainly distributed over the bottom of the valence-band to produce the covalent bonding with O ions.
AB - Site-specific valence-band X-ray photoelectron spectra of SrTiO3 (111) were successfully obtained by using X-ray standing wave technique. Contributions of the Ti and SrO3 derived states to the valence-band spectra were clearly separated. The spectra provided not only site-specific but also bulk-sensitive information on the SrTiO3 crystal because of the use of a high-energy synchrotron X-ray source (hν=4750 eV) for photoelectron excitation with the large escape depth. The electronic structures calculated by the DV-Xα method using a (Sr8Ti27O 108)92- cluster model well reproduced the observed structures in the valence-band spectra. The partial density of states of both Ti and Sr ions in SrTiO3 were mainly distributed over the bottom of the valence-band to produce the covalent bonding with O ions.
KW - A. Ferroelectrics
KW - D. Electronic states (localized)
KW - E. Photoelectron spectroscopies
UR - http://www.scopus.com/inward/record.url?scp=27344434878&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=27344434878&partnerID=8YFLogxK
U2 - 10.1016/j.ssc.2005.09.013
DO - 10.1016/j.ssc.2005.09.013
M3 - Article
AN - SCOPUS:27344434878
VL - 136
SP - 375
EP - 379
JO - Solid State Communications
JF - Solid State Communications
SN - 0038-1098
IS - 7
ER -