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Non-dispersive Fermi arcs and absence of charge ordering in the pseudogap phase of Bi2Sr2CaCu2O8+d

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arxiv cond-mat/0505296 v1 pith:7AZWEZQ3 submitted 2005-05-11 cond-mat.supr-con

U. Chatterjee , M. Shi , A. Kaminski , A. Kanigel , H. M. Fretwell , K. Terashima , T. Takahashi , S. Rosenkranz
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Z. Z. Li H. Raffy A. Santander-Syro K. Kadowaki M. R. Norman M. Randeria J. C. Campuzano
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classification cond-mat.supr-con
keywords non-dispersiveorderingarcsautocorrelationbi2sr2cacu2o8bindingenergyfermi
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The autocorrelation of angle resolved photoemission data from the high temperature superconductor Bi2Sr2CaCu2O8+d shows distinct peaks in momentum space which disperse with binding energy in the superconducting state, but not in the pseudogap phase. Although it is tempting to attribute a non-dispersive behavior in momentum space to some ordering phenomenon, a de-construction of the autocorrelation reveals that the non-dispersive peaks arise not from ordering, but rather from the tips of the Fermi arcs, which themselves do not change with binding energy.

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