Unoccupied electronic structure in the surface state of lightly doped SrTiO3 by resonant inverse photoemission spectroscopy

T. Higuchi; S. Nozawa; T. Tsukamoto; H. Ishii; R. Eguchi; Y. Tezukan; S. Yamaguchi; K. Kanai; S. Shin

Unoccupied electronic structure in the surface state of lightly doped SrTiO₃ by resonant inverse photoemission spectroscopy

T. Higuchi, S. Nozawa, T. Tsukamoto, H. Ishii, R. Eguchi, Y. Tezukan, S. Yamaguchi, K. Kanai, S. Shin

Research output: Contribution to journal › Article › peer-review

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 t_2g and e_g 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 (E_F). 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

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Cite this

@article{1536f004745f4971a6f76530499e7e84,

title = "Unoccupied electronic structure in the surface state of lightly doped SrTiO3 by resonant inverse photoemission spectroscopy",

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.",

author = "T. Higuchi and S. Nozawa and T. Tsukamoto and H. Ishii and R. Eguchi and Y. Tezukan and S. Yamaguchi and K. Kanai and S. Shin",

year = "2002",

month = oct,

day = "15",

language = "English",

volume = "66",

pages = "1531051--1531054",

journal = "Physical Review B-Condensed Matter",

issn = "1098-0121",

publisher = "American Physical Society",

number = "15",

}

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, R.

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 -

Unoccupied electronic structure in the surface state of lightly doped SrTiO₃ by resonant inverse photoemission spectroscopy

Abstract

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this