Temperature-dependent photoemission features for overdoped Bi2Sr2CaCu2O8+x cuprates
We report temperature-dependent angle-resolved photoemission spectra for overdoped Bi2Sr2CaCu2O8+alpha single-crystal samples. The data indicate that there is a special temperature (T+) where the spectral function changes intensity, and where the energy difference between the peak and dip features changes. The data also demonstrate that immediately above the superconducting transition temperature, the system exhibits a non-lorentzian lineshape. We discuss implications of the data.
Univ Wisconsin, Dept Phys, Madison, WI 53706 USA. Ecole Polytech Fed Lausanne, Inst Phys Appl, CH-1015 Lausanne, Switzerland. Rast, S, Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA.
ISI Document Delivery No.: 333ZF
Record created on 2006-10-03, modified on 2016-08-08