Abrecht, M.Ariosa, D.Onellion, M.Margaritondo, G.Pavuna, D.2006-10-032006-10-032006-10-03200210.1063/1.1426235https://infoscience.epfl.ch/handle/20.500.14299/234873WOS:000173418500043700We used pulsed laser deposition, with a Bi2Sr2CaCu2O8+x target, to grow films ranging from (1/4) to 10 unit cells thick. We studied these films, and reference Bi2Sr2CaCu2O8+x single crystal samples, using angle-integrated photoemission, core level photoemission, and x-ray diffraction. The data indicate that all films exhibit a metallic-like Fermi edge in the photoemission data. More strikingly, a structural phase transition occurs at a nominal Bi2Sr2CaCu2O8+x thickness of approximately one unit cell, converting the precursor Bi2O2.33 highly coherent thin film into a Bi2Sr2CaCu2O8+x structure. (C) 2002 American Institute of Physics.text::journal::journal article::research article