Journal
PHYSICAL REVIEW B
Volume 75, Issue 18, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.75.184506
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We propose that the presence of a rotationally symmetric charge modulation in high-T-c superconductors is able to account for an anomalous quasiparticle dispersion revealed recently by angle-resolved photoemission spectroscopy (ARPES) experiments. We elaborate that the nodal quasiparticle is well defined at low energies, while the dispersion breaks up at the energy E-1 and reappears at the energy E-2. Our results are in agreement with both the ARPES and scanning tunneling microscopy experiments.
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