title: Nondispersive fermi arcs and the absence of charge ordering in the pseudogap phase of Bi2Sr2CaCu2O8+delta.
abstract: The autocorrelation of angle resolved photoemission data from the high temperature superconductor Bi(2)Sr(2)CaCu(2)O(8+delta) 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 nondispersive behavior in momentum space to charge ordering, a deconstruction of the autocorrelation reveals that the nondispersive peaks arise from the tips of the Fermi arcs, which themselves do not change with binding energy.
authors.affiliation: Department of Physics, University of Illinois at Chicago, 60607, USA.
authors.forename: U
authors.initials: U
authors.lastname: Chatterjee
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authors.lastname: Shi
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authors.lastname: Kaminski
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authors.lastname: Kanigel
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authors.lastname: Fretwell
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authors.lastname: Terashima
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authors.lastname: Takahashi
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authors.lastname: Rosenkranz
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authors.lastname: Li
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authors.lastname: Raffy
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authors.lastname: Santander-Syro
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authors.lastname: Kadowaki
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authors.lastname: Norman
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authors.lastname: Randeria
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authors.lastname: Campuzano