Electronic structure of Pb2Sr2PrCu3O8 as studied by resonant photoemission spectroscopy

D. S. Dessau, Z. X. Shen, P. A.P. Lindberg, B. O. Wells, A. Borg, I. Lindau, W. E. Spicer, J. V. Waszczak, Lynn Schneemeyer

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Abstract

Resonant photoemission spectroscopy has been used to study the electronic structure of the recently discovered high-temperature superconductor Pb2Sr2PrCu3O8. The valence-band features are compared with those from other high-temperature superconductors and with band-structure calculations. A strong Cu 3d8 satellite arises at approximately the same energy position as in the other high-Tc superconductors, implying that to first order the model parameter Udd will be quite similar. A 0.7-eV shift to higher binding energy of the band-theoretical density of states is required to obtain the best agreement with the photoemission spectra. The strong Cu 3d8 satellite and the discrepancy between the band theory and the photoemission spectra show the importance of correlations in this material. The valency of Pr in the material was observed to be 3+, as it had been in PrBa2Cu3O7. The extracted Pr 4f spectral weight suggests that the hybridization of the Pr 4f states with the in-plane O states is reduced, as compared to PrBa2Cu3O7-. This is plausible, as the interplanar spacing is larger in this material than in PrBa2Cu3O7-. We infer that this hybridization is important for the quenching of the superconductivity in PrBa2Cu3O7- and explains why the superconductivity is not quenched in Pb2Sr2Prr1-xCaxCu3O8.

Original languageEnglish
Pages (from-to)6726-6730
Number of pages5
JournalPhysical Review B
Volume40
Issue number10
DOIs
StatePublished - 1 Jan 1989

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Photoelectron spectroscopy
Electronic structure
photoelectric emission
High temperature superconductors
Photoemission
electronic structure
Superconductivity
Satellites
high temperature superconductors
spectroscopy
superconductivity
Valence bands
Binding energy
Band structure
Superconducting materials
Quenching
binding energy
quenching
spacing
valence

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Dessau, D. S., Shen, Z. X., Lindberg, P. A. P., Wells, B. O., Borg, A., Lindau, I., ... Schneemeyer, L. (1989). Electronic structure of Pb2Sr2PrCu3O8 as studied by resonant photoemission spectroscopy. Physical Review B, 40(10), 6726-6730. https://doi.org/10.1103/PhysRevB.40.6726
Dessau, D. S. ; Shen, Z. X. ; Lindberg, P. A.P. ; Wells, B. O. ; Borg, A. ; Lindau, I. ; Spicer, W. E. ; Waszczak, J. V. ; Schneemeyer, Lynn. / Electronic structure of Pb2Sr2PrCu3O8 as studied by resonant photoemission spectroscopy. In: Physical Review B. 1989 ; Vol. 40, No. 10. pp. 6726-6730.
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abstract = "Resonant photoemission spectroscopy has been used to study the electronic structure of the recently discovered high-temperature superconductor Pb2Sr2PrCu3O8. The valence-band features are compared with those from other high-temperature superconductors and with band-structure calculations. A strong Cu 3d8 satellite arises at approximately the same energy position as in the other high-Tc superconductors, implying that to first order the model parameter Udd will be quite similar. A 0.7-eV shift to higher binding energy of the band-theoretical density of states is required to obtain the best agreement with the photoemission spectra. The strong Cu 3d8 satellite and the discrepancy between the band theory and the photoemission spectra show the importance of correlations in this material. The valency of Pr in the material was observed to be 3+, as it had been in PrBa2Cu3O7. The extracted Pr 4f spectral weight suggests that the hybridization of the Pr 4f states with the in-plane O states is reduced, as compared to PrBa2Cu3O7-. This is plausible, as the interplanar spacing is larger in this material than in PrBa2Cu3O7-. We infer that this hybridization is important for the quenching of the superconductivity in PrBa2Cu3O7- and explains why the superconductivity is not quenched in Pb2Sr2Prr1-xCaxCu3O8.",
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Dessau, DS, Shen, ZX, Lindberg, PAP, Wells, BO, Borg, A, Lindau, I, Spicer, WE, Waszczak, JV & Schneemeyer, L 1989, 'Electronic structure of Pb2Sr2PrCu3O8 as studied by resonant photoemission spectroscopy', Physical Review B, vol. 40, no. 10, pp. 6726-6730. https://doi.org/10.1103/PhysRevB.40.6726

Electronic structure of Pb2Sr2PrCu3O8 as studied by resonant photoemission spectroscopy. / Dessau, D. S.; Shen, Z. X.; Lindberg, P. A.P.; Wells, B. O.; Borg, A.; Lindau, I.; Spicer, W. E.; Waszczak, J. V.; Schneemeyer, Lynn.

In: Physical Review B, Vol. 40, No. 10, 01.01.1989, p. 6726-6730.

Research output: Contribution to journalArticleResearchpeer-review

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T1 - Electronic structure of Pb2Sr2PrCu3O8 as studied by resonant photoemission spectroscopy

AU - Dessau, D. S.

AU - Shen, Z. X.

AU - Lindberg, P. A.P.

AU - Wells, B. O.

AU - Borg, A.

AU - Lindau, I.

AU - Spicer, W. E.

AU - Waszczak, J. V.

AU - Schneemeyer, Lynn

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N2 - Resonant photoemission spectroscopy has been used to study the electronic structure of the recently discovered high-temperature superconductor Pb2Sr2PrCu3O8. The valence-band features are compared with those from other high-temperature superconductors and with band-structure calculations. A strong Cu 3d8 satellite arises at approximately the same energy position as in the other high-Tc superconductors, implying that to first order the model parameter Udd will be quite similar. A 0.7-eV shift to higher binding energy of the band-theoretical density of states is required to obtain the best agreement with the photoemission spectra. The strong Cu 3d8 satellite and the discrepancy between the band theory and the photoemission spectra show the importance of correlations in this material. The valency of Pr in the material was observed to be 3+, as it had been in PrBa2Cu3O7. The extracted Pr 4f spectral weight suggests that the hybridization of the Pr 4f states with the in-plane O states is reduced, as compared to PrBa2Cu3O7-. This is plausible, as the interplanar spacing is larger in this material than in PrBa2Cu3O7-. We infer that this hybridization is important for the quenching of the superconductivity in PrBa2Cu3O7- and explains why the superconductivity is not quenched in Pb2Sr2Prr1-xCaxCu3O8.

AB - Resonant photoemission spectroscopy has been used to study the electronic structure of the recently discovered high-temperature superconductor Pb2Sr2PrCu3O8. The valence-band features are compared with those from other high-temperature superconductors and with band-structure calculations. A strong Cu 3d8 satellite arises at approximately the same energy position as in the other high-Tc superconductors, implying that to first order the model parameter Udd will be quite similar. A 0.7-eV shift to higher binding energy of the band-theoretical density of states is required to obtain the best agreement with the photoemission spectra. The strong Cu 3d8 satellite and the discrepancy between the band theory and the photoemission spectra show the importance of correlations in this material. The valency of Pr in the material was observed to be 3+, as it had been in PrBa2Cu3O7. The extracted Pr 4f spectral weight suggests that the hybridization of the Pr 4f states with the in-plane O states is reduced, as compared to PrBa2Cu3O7-. This is plausible, as the interplanar spacing is larger in this material than in PrBa2Cu3O7-. We infer that this hybridization is important for the quenching of the superconductivity in PrBa2Cu3O7- and explains why the superconductivity is not quenched in Pb2Sr2Prr1-xCaxCu3O8.

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Dessau DS, Shen ZX, Lindberg PAP, Wells BO, Borg A, Lindau I et al. Electronic structure of Pb2Sr2PrCu3O8 as studied by resonant photoemission spectroscopy. Physical Review B. 1989 Jan 1;40(10):6726-6730. https://doi.org/10.1103/PhysRevB.40.6726