We present a theoretical study of the modification of the one-hole spectra induced by the surface in YBa2Cu3O7. Basal plane surfaces terminated either with Ba or CuO planes are considered. Correlation effects are included by using a Hubbard model hamiltonian and by calculating the self-energy in the low density approximation. The results indicate that both the main bands and the satellites are sensitive to the choice of the surface.
ONE HOLE SPECTRA AT Y BA2CU3O7 SURFACES / CALANDRA BUONAURA, Carlo; Manghi, Franca; Minerva, Tommaso. - In: PHYSICA. C, SUPERCONDUCTIVITY. - ISSN 0921-4534. - STAMPA. - 162:(1989), pp. 211-212.