In‐situ growth of gadolinium phthalocyaninato sandwich complexes on the Ag(111) surface

: We report a low-temperature scanning tunneling microscopy investigation of the in-situ growth of gadolinium phthalocyaninato complexes by combined deposition of free-base phthalocyanines and gadolinium atoms on a smooth Ag(111) substrate. A careful control of the stoichiometry allows the expression of a multilevel structurecomposed of irregularly distributed Gdx-1 (Pc)x complexes, x=2-5, thus paving new avenues for surface-confined columnar growth.