Angle-resolved photoemission on untwinned YBa2Cu3O6.95. II. Determination of Fermi surfaces

Matthias Schabel, C. H. Park, A. Matsuura, Z. X. Shen, D. A. Bonn, Ruixing Liang, W. N. Hardy

Research output: Contribution to journalArticle

67 Citations (Scopus)

Abstract

We present complete Fermi-surface mappings of an untwinned single crystal of YBa2Cu3O7-δ in two distinct photon polarization geometries. Various methods for Fermi-surface determination with angle-resolved photoelectron spectroscopy are discussed and a technique based on the momentum space density of states is developed and applied. The data reveal the presence of two CuO2 plane-derived Fermi-surface pockets, along with weak evidence for a single chain sheet, in agreement with earlier work on twinned crystals and ab initio predictions, but show no sign of the expected "stick" pocket centered at (π,π). In contrast with earlier work on Bi2Sr2CaCu2O8+δ, we see no evidence for "shadow bands" in optimally doped YBa2Cu3O7-δ, supporting the contention that these features arise from structural rather than magnetic correlations.

Original languageEnglish (US)
Pages (from-to)6107-6115
Number of pages9
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume57
Issue number10
StatePublished - Mar 1 1998
Externally publishedYes

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Fermi surfaces
photoelectric emission
space density
photoelectron spectroscopy
momentum
single crystals
photons
polarization
geometry
predictions
crystals

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Schabel, M., Park, C. H., Matsuura, A., Shen, Z. X., Bonn, D. A., Liang, R., & Hardy, W. N. (1998). Angle-resolved photoemission on untwinned YBa2Cu3O6.95. II. Determination of Fermi surfaces. Physical Review B - Condensed Matter and Materials Physics, 57(10), 6107-6115.

Angle-resolved photoemission on untwinned YBa2Cu3O6.95. II. Determination of Fermi surfaces. / Schabel, Matthias; Park, C. H.; Matsuura, A.; Shen, Z. X.; Bonn, D. A.; Liang, Ruixing; Hardy, W. N.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 57, No. 10, 01.03.1998, p. 6107-6115.

Research output: Contribution to journalArticle

Schabel, M, Park, CH, Matsuura, A, Shen, ZX, Bonn, DA, Liang, R & Hardy, WN 1998, 'Angle-resolved photoemission on untwinned YBa2Cu3O6.95. II. Determination of Fermi surfaces', Physical Review B - Condensed Matter and Materials Physics, vol. 57, no. 10, pp. 6107-6115.
Schabel, Matthias ; Park, C. H. ; Matsuura, A. ; Shen, Z. X. ; Bonn, D. A. ; Liang, Ruixing ; Hardy, W. N. / Angle-resolved photoemission on untwinned YBa2Cu3O6.95. II. Determination of Fermi surfaces. In: Physical Review B - Condensed Matter and Materials Physics. 1998 ; Vol. 57, No. 10. pp. 6107-6115.
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