Hwu, Y.Lozzi, L.Larosa, S.Marsi, M.Onellion, M.Berger, H.Gozzo, F.Levy, F.Margaritondo, G.2006-10-032006-10-032006-10-03199110.1016/0038-1098(91)90891-Xhttps://infoscience.epfl.ch/handle/20.500.14299/234534WOS:A1991GW19000011We identified the nature of the chemical reaction between silver and the cleaved surface of BiCaSrCuO at room temperature as a Bi-Ag reaction with Bi segregation, accompanied by interaction with the Sr atoms. Our synchrotron-radiation photoemission spectra also reveal an interaction of the adatoms with the O atoms, not detected by previous studies.ELECTRONIC-STRUCTUREHEAT-TREATMENTAGWIRESTAPEtext::journal::journal article::research article