Hole states in CuO2 planes and Cu-O chains of YBa2Cu3O7 and YBa2Cu4O8 probed by soft-x-ray absorption spectroscopy

A. Krol; Z. H. Ming; Y. H. Kao; N. N̈cker; G. Roth; J. Fink; G. C. Smith; Key Taeck Park; Jaejun Yu; Arthur J Freeman; A. Erband; G. M̈ller-Vogt; J. Karpinski; E. Kaldis; K. Schönmann

doi:10.1103/PhysRevB.45.2581

Hole states in CuO2 planes and Cu-O chains of YBa2Cu3O7 and YBa2Cu4O8 probed by soft-x-ray absorption spectroscopy

A. Krol, Z. H. Ming, Y. H. Kao, N. N̈cker, G. Roth, J. Fink, G. C. Smith, Key Taeck Park, Jaejun Yu, Arthur J Freeman, A. Erband, G. M̈ller-Vogt, J. Karpinski, E. Kaldis, K. Schönmann

Northwestern University

Research output: Contribution to journal › Article

54 Citations (Scopus)

Abstract

The symmetry and density of unoccupied states of twin-free YBa2Cu3O7 and YBa2Cu4O8 single crystals have been investigated by orientation-dependent x-ray absorption spectroscopy at the O 1s edge, using a bulk-sensitive fluoresence-yield-detection method. In conjunction with earlier results obtained by electron-energy-loss spectroscopy, the relative density of unoccupied states for different oxygen sites has been derived. Comparison with local-density energy-band-structure calculations shows reasonable agreement with the experimental results.

Original language	English
Pages (from-to)	2581-2584
Number of pages	4
Journal	Physical Review B
Volume	45
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevB.45.2581
Publication status	Published - 1992

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ASJC Scopus subject areas

Condensed Matter Physics

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Krol, A., Ming, Z. H., Kao, Y. H., N̈cker, N., Roth, G., Fink, J., Smith, G. C., Park, K. T., Yu, J., Freeman, A. J., Erband, A., M̈ller-Vogt, G., Karpinski, J., Kaldis, E., & Schönmann, K. (1992). Hole states in CuO2 planes and Cu-O chains of YBa2Cu3O7 and YBa2Cu4O8 probed by soft-x-ray absorption spectroscopy. Physical Review B, 45(5), 2581-2584. https://doi.org/10.1103/PhysRevB.45.2581

Hole states in CuO2 planes and Cu-O chains of YBa2Cu3O7 and YBa2Cu4O8 probed by soft-x-ray absorption spectroscopy. / Krol, A.; Ming, Z. H.; Kao, Y. H.; N̈cker, N.; Roth, G.; Fink, J.; Smith, G. C.; Park, Key Taeck; Yu, Jaejun; Freeman, Arthur J; Erband, A.; M̈ller-Vogt, G.; Karpinski, J.; Kaldis, E.; Schönmann, K.

In: Physical Review B, Vol. 45, No. 5, 1992, p. 2581-2584.

Research output: Contribution to journal › Article

Krol, A, Ming, ZH, Kao, YH, N̈cker, N, Roth, G, Fink, J, Smith, GC, Park, KT, Yu, J, Freeman, AJ, Erband, A, M̈ller-Vogt, G, Karpinski, J, Kaldis, E & Schönmann, K 1992, 'Hole states in CuO2 planes and Cu-O chains of YBa2Cu3O7 and YBa2Cu4O8 probed by soft-x-ray absorption spectroscopy', Physical Review B, vol. 45, no. 5, pp. 2581-2584. https://doi.org/10.1103/PhysRevB.45.2581

Krol, A. ; Ming, Z. H. ; Kao, Y. H. ; N̈cker, N. ; Roth, G. ; Fink, J. ; Smith, G. C. ; Park, Key Taeck ; Yu, Jaejun ; Freeman, Arthur J ; Erband, A. ; M̈ller-Vogt, G. ; Karpinski, J. ; Kaldis, E. ; Schönmann, K. / Hole states in CuO2 planes and Cu-O chains of YBa2Cu3O7 and YBa2Cu4O8 probed by soft-x-ray absorption spectroscopy. In: Physical Review B. 1992 ; Vol. 45, No. 5. pp. 2581-2584.

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abstract = "The symmetry and density of unoccupied states of twin-free YBa2Cu3O7 and YBa2Cu4O8 single crystals have been investigated by orientation-dependent x-ray absorption spectroscopy at the O 1s edge, using a bulk-sensitive fluoresence-yield-detection method. In conjunction with earlier results obtained by electron-energy-loss spectroscopy, the relative density of unoccupied states for different oxygen sites has been derived. Comparison with local-density energy-band-structure calculations shows reasonable agreement with the experimental results.",

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AU - Kao, Y. H.

AU - N̈cker, N.

AU - Roth, G.

AU - Fink, J.

AU - Smith, G. C.

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AU - Yu, Jaejun

AU - Freeman, Arthur J

AU - Erband, A.

AU - M̈ller-Vogt, G.

AU - Karpinski, J.

AU - Kaldis, E.

AU - Schönmann, K.

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AB - The symmetry and density of unoccupied states of twin-free YBa2Cu3O7 and YBa2Cu4O8 single crystals have been investigated by orientation-dependent x-ray absorption spectroscopy at the O 1s edge, using a bulk-sensitive fluoresence-yield-detection method. In conjunction with earlier results obtained by electron-energy-loss spectroscopy, the relative density of unoccupied states for different oxygen sites has been derived. Comparison with local-density energy-band-structure calculations shows reasonable agreement with the experimental results.

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10.1103/PhysRevB.45.2581