We 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.
Ksenia Briling, Puck Elisabeth van Gerwen, Yannick Calvino Alonso, Malte Martin Franke
Raffaella Buonsanti, James Richard Pankhurst, Laia Castilla Amorós, Tzu-Chin Chang Chien
Dominique Bonvin, Diogo Filipe Mateus Rodrigues