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  Resonant photoemission study of the electronic structure of CuO and Cu2O

Ghijsen, J., Tjeng, L. H., Eskes, H., Sawatzky, G. A., & Johnson, R. L. (1990). Resonant photoemission study of the electronic structure of CuO and Cu2O. Physical Review B, 42(4), 2268-2274. doi:10.1103/PhysRevB.42.2268.

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 Creators:
Ghijsen, J.1, Author
Tjeng, L. H.2, Author           
Eskes, H.1, Author
Sawatzky, G. A.1, Author
Johnson, R. L.1, Author
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1external, ou_persistent22              
2External Organizations, ou_persistent22              

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 Abstract: The electronic structures of CuO and Cu2O have been investigated by resonant photoemission at the copper 3p threshold. The experimental data from CuO are compared with the results of a cluster calculation. From this analysis we confirm the dominant d8 character of the states between 8 and 16 eV, and that singlet and triplet final states behave quite differently at the (3p→3d) resonance. It is necessary to specify the multiplet state when calculating the d-d Coulomb interaction in this case since the total energy spread of the d8 multiplets is about 8 eV. The results confirm the charge-transfer nature of the band gap in CuO. The resonance behavior in Cu2O is explained in terms of strong O 2p–Cu 4(sp) hybridization.

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 Dates: 1990-08-01
 Publication Status: Issued
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 Table of Contents: -
 Rev. Type: -
 Identifiers: ISI: A1990DT06400047
DOI: 10.1103/PhysRevB.42.2268
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Title: Physical Review B
  Other : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 42 (4) Sequence Number: - Start / End Page: 2268 - 2274 Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008