Dependence of ARPES of High Tc Superconductors on the Spin Fluctuation Susceptibility
L. Coffey, D. Lacy, K. Kouznetsov, A. Erner
Abstract
ARPES measurements on HiTc superconductors such as BiSrCaCuO reveal a quasiparticle peak, a broad background and a dip. The background may originate from inelastic spin fluctuation emission. Calculations of the spectral weight are presented incorporating these inelastic processes. Superconducting correlations have been included in the magnetic susceptibility. The dip feature in the spectral weight is evidence for a spin gap in the superconducting state.
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