Abstract
The unoccupied electronic structure in the surface state of lightly doped SrTiO3 has been studied by resonant inverse-photoemission spectroscopy (RIPES). The RIPES spectra show two features whose energy separations match the t2g and eg subbands of unoccupied Ti 3d state. A peak clarified by the Ti 3p → 3d resonance effect is observed at -6.1 eV above Fermi level (EF). The -6.1 eV peak is not found in the O 1 s x-ray absorption spectrum, which reflects the electronic structure of the bulk state. The existence of the -6.1 eV peak suggests the correlation effect in the surface state of lightly doped SrTiO3.
| Original language | English |
|---|---|
| Article number | 153105 |
| Pages (from-to) | 1531051-1531054 |
| Number of pages | 4 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 66 |
| Issue number | 15 |
| Publication status | Published - Oct 15 2002 |
| Externally published | Yes |
Fingerprint
ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Unoccupied electronic structure in the surface state of lightly doped SrTiO3 by resonant inverse photoemission spectroscopy. / Higuchi, T.; Nozawa, S.; Tsukamoto, T.; Ishii, H.; Eguchi, Ritsuko; Tezukan, Y.; Yamaguchi, S.; Kanai, K.; Shin, S.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 66, No. 15, 153105, 15.10.2002, p. 1531051-1531054.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Unoccupied electronic structure in the surface state of lightly doped SrTiO3 by resonant inverse photoemission spectroscopy
AU - Higuchi, T.
AU - Nozawa, S.
AU - Tsukamoto, T.
AU - Ishii, H.
AU - Eguchi, Ritsuko
AU - Tezukan, Y.
AU - Yamaguchi, S.
AU - Kanai, K.
AU - Shin, S.
PY - 2002/10/15
Y1 - 2002/10/15
N2 - The unoccupied electronic structure in the surface state of lightly doped SrTiO3 has been studied by resonant inverse-photoemission spectroscopy (RIPES). The RIPES spectra show two features whose energy separations match the t2g and eg subbands of unoccupied Ti 3d state. A peak clarified by the Ti 3p → 3d resonance effect is observed at -6.1 eV above Fermi level (EF). The -6.1 eV peak is not found in the O 1 s x-ray absorption spectrum, which reflects the electronic structure of the bulk state. The existence of the -6.1 eV peak suggests the correlation effect in the surface state of lightly doped SrTiO3.
AB - The unoccupied electronic structure in the surface state of lightly doped SrTiO3 has been studied by resonant inverse-photoemission spectroscopy (RIPES). The RIPES spectra show two features whose energy separations match the t2g and eg subbands of unoccupied Ti 3d state. A peak clarified by the Ti 3p → 3d resonance effect is observed at -6.1 eV above Fermi level (EF). The -6.1 eV peak is not found in the O 1 s x-ray absorption spectrum, which reflects the electronic structure of the bulk state. The existence of the -6.1 eV peak suggests the correlation effect in the surface state of lightly doped SrTiO3.
UR - http://www.scopus.com/inward/record.url?scp=20744435173&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=20744435173&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:20744435173
VL - 66
SP - 1531051
EP - 1531054
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 1098-0121
IS - 15
M1 - 153105
ER -