Electronic-Spectrum of the High-Temperature Superconducting State
Improved experimental conditions enabled us to increase the signal-to-noise ratio of the photoemission spectra for the superconducting state of Bi2Ca2SrCu2O8, taken with high angular and energy resolution. This also enabled us to reveal a pronounced minimum that separates the two basic features of the spectrum, the narrow quasiparticle excitation peak and the still controversial broad band at lower kinetic energies. The minimum is approximately 3-DELTA below the Fermi level.
WOS:A1991GL80100043
1991
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Univ wisconsin,ctr synchrotron radiat,madison,wi 53706. ecole polytech fed lausanne,ph ecublens,inst phys appl,ch-1015 lausanne,switzerland. Hwu, y, univ wisconsin,dept phys,madison,wi 53706.
ISI Document Delivery No.: GL801
REVIEWED
EPFL