title: Electron doping by charge transfer at LaFeO3/Sm2CuO4 epitaxial interfaces.
abstract: Using X-ray absorption spectroscopy and electron energy loss spectroscopy with atomic-scale spatial resolution, experimental evidence for charge transfer at the interface between the Mott insulators Sm2 CuO4 and LaFeO3 is obtained. As a consequence of the charge transfer, the Sm2 CuO4 is doped with electrons and thus epitaxial Sm2 CuO4 /LaFeO3 heterostructures become metallic.
authors.affiliation: GFMC, Departamento Física Aplicada III, Universidad Complutense de Madrid, Campus Moncloa, Madrid, Spain. flavioyb@fis.ucm.es
authors.forename: Flavio Y
authors.initials: FY
authors.lastname: Bruno
authors.forename: Rainer
authors.initials: R
authors.lastname: Schmidt
authors.forename: Maria
authors.initials: M
authors.lastname: Varela
authors.forename: Javier
authors.initials: J
authors.lastname: Garcia-Barriocanal
authors.forename: Alberto
authors.initials: A
authors.lastname: Rivera-Calzada
authors.forename: Fabian A
authors.initials: FA
authors.lastname: Cuellar
authors.forename: Carlos
authors.initials: C
authors.lastname: Leon
authors.forename: Pardeep
authors.initials: P
authors.lastname: Thakur
authors.forename: Julio C
authors.initials: JC
authors.lastname: Cezar
authors.forename: Nicholas B
authors.initials: NB
authors.lastname: Brookes
authors.forename: Mar
authors.initials: M
authors.lastname: Garcia-Hernandez
authors.forename: Elbio
authors.initials: E
authors.lastname: Dagotto
authors.forename: Stephen J
authors.initials: SJ
authors.lastname: Pennycook
authors.forename: Jacobo
authors.initials: J
authors.lastname: Santamaria