Bulk screening in core-level photoemission from Mott-Hubbard and charge-transfer systems

M. Taguchi, A. Chainani, N. Kamakura, K. Horiba, Y. Takata, M. Yabashi, K. Tamasaku, Y. Nishino, D. Miwa, T. Ishikawa, S. Shin, E. Ikenaga, Takayoshi Yokoya, K. Kobayashi, T. Mochiku, K. Hirata, K. Motoya

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Abstract

We report bulk-sensitive hard x-ray (hν=5.95 keV) core-level photoemission spectroscopy (PES) of single crystal V1.98 Cr0.02 O3 and the high- Tc cuprate Bi2 Sr2 Ca Cu2 O8+δ (Bi2212). V1.98 Cr0.02 O3 exhibits low binding energy "satellites" to the V 2p "main lines" in the metallic phase, which are suppressed in the antiferromagnetic insulator phase. In contrast, the Cu 2p spectra of Bi2212 do not show temperature-dependent features, but a comparison with soft x-ray PES indicates a large increase in the 2 p5 3 d9 satellites or 3 d9 weight in the bulk. Cluster model calculations, including a full multiplet structure and a screening channel derived from the coherent band at the Fermi energy, give very satisfactory agreement with the experiments.

Original languageEnglish
Article number155102
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume71
Issue number15
DOIs
Publication statusPublished - 2005
Externally publishedYes

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Core levels
Photoemission
Photoelectron spectroscopy
Charge transfer
Screening
photoelectric emission
screening
charge transfer
Satellites
X rays
Fermi level
Binding energy
spectroscopy
cuprates
x rays
binding energy
fine structure
insulators
Single crystals
single crystals

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Bulk screening in core-level photoemission from Mott-Hubbard and charge-transfer systems. / Taguchi, M.; Chainani, A.; Kamakura, N.; Horiba, K.; Takata, Y.; Yabashi, M.; Tamasaku, K.; Nishino, Y.; Miwa, D.; Ishikawa, T.; Shin, S.; Ikenaga, E.; Yokoya, Takayoshi; Kobayashi, K.; Mochiku, T.; Hirata, K.; Motoya, K.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 71, No. 15, 155102, 2005.

Research output: Contribution to journalArticle

Taguchi, M, Chainani, A, Kamakura, N, Horiba, K, Takata, Y, Yabashi, M, Tamasaku, K, Nishino, Y, Miwa, D, Ishikawa, T, Shin, S, Ikenaga, E, Yokoya, T, Kobayashi, K, Mochiku, T, Hirata, K & Motoya, K 2005, 'Bulk screening in core-level photoemission from Mott-Hubbard and charge-transfer systems', Physical Review B - Condensed Matter and Materials Physics, vol. 71, no. 15, 155102. https://doi.org/10.1103/PhysRevB.71.155102
Taguchi, M. ; Chainani, A. ; Kamakura, N. ; Horiba, K. ; Takata, Y. ; Yabashi, M. ; Tamasaku, K. ; Nishino, Y. ; Miwa, D. ; Ishikawa, T. ; Shin, S. ; Ikenaga, E. ; Yokoya, Takayoshi ; Kobayashi, K. ; Mochiku, T. ; Hirata, K. ; Motoya, K. / Bulk screening in core-level photoemission from Mott-Hubbard and charge-transfer systems. In: Physical Review B - Condensed Matter and Materials Physics. 2005 ; Vol. 71, No. 15.
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AU - Kamakura, N.

AU - Horiba, K.

AU - Takata, Y.

AU - Yabashi, M.

AU - Tamasaku, K.

AU - Nishino, Y.

AU - Miwa, D.

AU - Ishikawa, T.

AU - Shin, S.

AU - Ikenaga, E.

AU - Yokoya, Takayoshi

AU - Kobayashi, K.

AU - Mochiku, T.

AU - Hirata, K.

AU - Motoya, K.

PY - 2005

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AB - We report bulk-sensitive hard x-ray (hν=5.95 keV) core-level photoemission spectroscopy (PES) of single crystal V1.98 Cr0.02 O3 and the high- Tc cuprate Bi2 Sr2 Ca Cu2 O8+δ (Bi2212). V1.98 Cr0.02 O3 exhibits low binding energy "satellites" to the V 2p "main lines" in the metallic phase, which are suppressed in the antiferromagnetic insulator phase. In contrast, the Cu 2p spectra of Bi2212 do not show temperature-dependent features, but a comparison with soft x-ray PES indicates a large increase in the 2 p5 3 d9 satellites or 3 d9 weight in the bulk. Cluster model calculations, including a full multiplet structure and a screening channel derived from the coherent band at the Fermi energy, give very satisfactory agreement with the experiments.

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