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Recent angle-resolved photoemission spectroscopy (ARPES) measurements on HTSC oxides whose contributions are intra-band show a kink in the quasiparticle spectrum at characteristic phonon frequencies in the normal and superconducting state. In contrast with our theoretica discussion, we include our theoretical results for the renormalized energy Ek as a function of the bare band energy ek compared with ARPES spectroscopies in Pb, OD-Bi2212, and OD-Y123. |
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