Origin of the shadow Fermi surface in Bi-based cuprates

Koitzsch, A.; Borisenko, S. V.; Kordyuk, A. A.; Kim, T. K.; Knupfer, M.; Fink, J.; Golden, M. S.; Koops, W.; Berger, H.; Keimer, B.; Lin, C. T.; Ono, S.; Ando, Y.; Follath, R.

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Origin of the shadow Fermi surface in Bi-based cuprates

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Keimer, B.
Department Solid State Spectroscopy (Bernhard Keimer), Max Planck Institute for Solid State Research, Max Planck Society;

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Lin, C. T.
Scientific Facility Crystal Growth (Masahiko Isobe), Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Koitzsch, A., Borisenko, S. V., Kordyuk, A. A., Kim, T. K., Knupfer, M., Fink, J., et al. (2004). Origin of the shadow Fermi surface in Bi-based cuprates. Physical Review B, 69(22): 220505.

Cite as: https://hdl.handle.net/21.11116/0000-000E-F5E7-9

Abstract

We used angle-resolved photoemission spectroscopy to study the shadow
Fermi surface in one layer Bi2Sr1.6La0.4CuO6+delta and two layer
(Bi,Pb)(2)Sr2CaCu2O8+delta. 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.