Bulk electronic structure of Na0.35CoO2·1. 3H2O

A. Chainani, Takayoshi Yokoya, Y. Takata, K. Tamasaku, M. Taguchi, T. Shimojima, N. Kamakura, K. Horiba, S. Tsuda, S. Shin, D. Miwa, Y. Nishino, T. Ishikawa, M. Yabashi, K. Kobayashi, H. Namatame, M. Taniguchi, K. Takada, T. Sasaki, H. SakuraiE. Takayama-Muromachi

Research output: Contribution to journalArticle

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Abstract

High-energy (hv = 5.95 keV) synchrotron photoemission spectroscopy (PES) is used to study bulk electronic structure of Na0.35CoO2 · 1.3H2O, the layered superconductor. In contrast to three-dimensional doped Co oxides, Co 2p core level spectra show well-separated Co3+ and Co4+ ions. Cluster calculations suggest low-spin Co3+ and Co4+ character, and a moderate on-site Coulomb correlation energy Udd∼3-5.5 eV. Photon dependent valence band PES identifies Co 3d and O 2p derived states, in near agreement with band-structure calculations.

Original languageEnglish
Article number180508
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume69
Issue number18
DOIs
Publication statusPublished - May 2004
Externally publishedYes

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Photoelectron spectroscopy
Electronic structure
photoelectric emission
electronic structure
Core levels
Valence bands
Synchrotrons
Band structure
Oxides
spectroscopy
Superconducting materials
synchrotrons
Photons
Ions
valence
oxides
energy
photons
ions

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Chainani, A., Yokoya, T., Takata, Y., Tamasaku, K., Taguchi, M., Shimojima, T., ... Takayama-Muromachi, E. (2004). Bulk electronic structure of Na0.35CoO2·1. 3H2O. Physical Review B - Condensed Matter and Materials Physics, 69(18), [180508]. https://doi.org/10.1103/PhysRevB.69.180508

Bulk electronic structure of Na0.35CoO2·1. 3H2O. / Chainani, A.; Yokoya, Takayoshi; Takata, Y.; Tamasaku, K.; Taguchi, M.; Shimojima, T.; Kamakura, N.; Horiba, K.; Tsuda, S.; Shin, S.; Miwa, D.; Nishino, Y.; Ishikawa, T.; Yabashi, M.; Kobayashi, K.; Namatame, H.; Taniguchi, M.; Takada, K.; Sasaki, T.; Sakurai, H.; Takayama-Muromachi, E.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 69, No. 18, 180508, 05.2004.

Research output: Contribution to journalArticle

Chainani, A, Yokoya, T, Takata, Y, Tamasaku, K, Taguchi, M, Shimojima, T, Kamakura, N, Horiba, K, Tsuda, S, Shin, S, Miwa, D, Nishino, Y, Ishikawa, T, Yabashi, M, Kobayashi, K, Namatame, H, Taniguchi, M, Takada, K, Sasaki, T, Sakurai, H & Takayama-Muromachi, E 2004, 'Bulk electronic structure of Na0.35CoO2·1. 3H2O', Physical Review B - Condensed Matter and Materials Physics, vol. 69, no. 18, 180508. https://doi.org/10.1103/PhysRevB.69.180508
Chainani, A. ; Yokoya, Takayoshi ; Takata, Y. ; Tamasaku, K. ; Taguchi, M. ; Shimojima, T. ; Kamakura, N. ; Horiba, K. ; Tsuda, S. ; Shin, S. ; Miwa, D. ; Nishino, Y. ; Ishikawa, T. ; Yabashi, M. ; Kobayashi, K. ; Namatame, H. ; Taniguchi, M. ; Takada, K. ; Sasaki, T. ; Sakurai, H. ; Takayama-Muromachi, E. / Bulk electronic structure of Na0.35CoO2·1. 3H2O. In: Physical Review B - Condensed Matter and Materials Physics. 2004 ; Vol. 69, No. 18.
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AU - Tsuda, S.

AU - Shin, S.

AU - Miwa, D.

AU - Nishino, Y.

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AU - Yabashi, M.

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AU - Taniguchi, M.

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