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Condensed Matter

arXiv:cond-mat/9603044 (cond-mat)
[Submitted on 6 Mar 1996]

Title:ARPES Study of the Superconducting Gap Anisotropy in Bi_2Sr_2CaCu_2O_8+x

Authors:H. Ding, M. R. Norman, J. C. Campuzano, M. Randeria, A. F. Bellman, T. Yokoya, T. Takahashi, T. Mochiku, K. Kadowaki
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Abstract: We report measurements of the momentum dependence of the superconducting gap in Bi_2Sr_2CaCu_2O_{8+x} (Bi2212) with angle-resolved photoemission spectroscopy using a dense sampling of the Brillouin zone in the vicinity of the Fermi surface. In the Y quadrant of the zone, where there are no complications from ghost bands caused by the superlattice, we find a gap function consistent within error bars to the form cos(k_x)-cos(k_y) expected for a d-wave order parameter. Similar results are found in the X quadrant with the photon polarization chosen to enhance main band emission over that due to ghost bands.
Comments: 3 pages, revtex, 4 postscript figures
Subjects: Condensed Matter (cond-mat); Superconductivity (cond-mat.supr-con)
Cite as: arXiv:cond-mat/9603044
  (or arXiv:cond-mat/9603044v1 for this version)
  https://doi.org/10.48550/arXiv.cond-mat/9603044
Journal reference: Phys Rev B 54, R9678 (1996)
Related DOI: https://doi.org/10.1103/PhysRevB.54.R9678

Submission history

From: Mike Norman [view email]
[v1] Wed, 6 Mar 1996 19:47:26 UTC (62 KB)
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