We present the results of theoretical calculations of the surface electronic structure of YBa2Cu3C7 assuming different crystal terminations. Through a detailed analysis of the distribution of the valence charge near the surface we show that hole distribution may be significantly modified at the surface, due to the band narrowing and to the presence of surface states. The role of these modifications in determining the shape of the one-hole spectra is discussed.
OXYGEN-INDUCED SURFACE-STATES IN YBA2CU3O7 / CALANDRA BUONAURA, Carlo; Manghi, Franca; Minerva, Tommaso. - In: VACUUM. - ISSN 0042-207X. - STAMPA. - 41:(1990), pp. 982-985. [10.1016/0042-207X(90)93840-F]
OXYGEN-INDUCED SURFACE-STATES IN YBA2CU3O7
CALANDRA BUONAURA, Carlo;MANGHI, Franca;MINERVA, Tommaso
1990
Abstract
We present the results of theoretical calculations of the surface electronic structure of YBa2Cu3C7 assuming different crystal terminations. Through a detailed analysis of the distribution of the valence charge near the surface we show that hole distribution may be significantly modified at the surface, due to the band narrowing and to the presence of surface states. The role of these modifications in determining the shape of the one-hole spectra is discussed.
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