The pseudo-(1 0 0) reconstructed surface of Cu(1 1 1) induced by adsorbed methanethiolate, CH3S-, has been investigated by medium energy ion scattering (MEIS) using 91 keV incident H+ ions with the objective of establishing the number of reconstructed Cu layers. The results are shown to be consistent with a single reconstructed Cu surface layer containing 0.66 ML Cu atoms in an incommensurate or long-range coincidence net structure. Specifically, excellent fits to both the scattered ion energy spectra and the angular blocking curves are found for a model based on a single pseudo-(1 0 0) reconstructed Cu layer, the atomic density being consistent with that proposed in an earlier STM study (S.M. Driver, D.P. Woodruff, Surf. Sci. 457 (2000) 11).
The methanethiolate-induced pseudo-(1 0 0) reconstruction of Cu(1 1 1): A medium energy ion scattering structure study
Munoz-Marquez M. A.Secondo
;
2005-01-01
Abstract
The pseudo-(1 0 0) reconstructed surface of Cu(1 1 1) induced by adsorbed methanethiolate, CH3S-, has been investigated by medium energy ion scattering (MEIS) using 91 keV incident H+ ions with the objective of establishing the number of reconstructed Cu layers. The results are shown to be consistent with a single reconstructed Cu surface layer containing 0.66 ML Cu atoms in an incommensurate or long-range coincidence net structure. Specifically, excellent fits to both the scattered ion energy spectra and the angular blocking curves are found for a model based on a single pseudo-(1 0 0) reconstructed Cu layer, the atomic density being consistent with that proposed in an earlier STM study (S.M. Driver, D.P. Woodruff, Surf. Sci. 457 (2000) 11).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
