Phys. Rev. B 69, 220505(R) (2004) [4 pages]Origin of the shadow Fermi surface in Bi-based cuprates
We used angle-resolved photoemission spectroscopy to study the shadow Fermi surface in one layer Bi2Sr1.6La0.4CuO6+δ and two layer (Bi,Pb)2Sr2CaCu2O8+δ. We find the shadow band to have the same peak width and dispersion as the main band. In addition, the shadow band/main band intensity ratio is found to be binding-energy independent. Consequently, it is concluded that the shadow bands in Bi-based HTSC do not originate from atiferromagnetic interactions, but have a structural origin. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.69.220505
DOI:
10.1103/PhysRevB.69.220505
PACS:
74.72.Hs
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