title: Spin-resolved splitting of Kondo resonances in the presence of RKKY-type coupling.
abstract: We have performed spin-resolved measurements on a Kondo impurity in the presence of RKKY-type exchange coupling. By placing manganese phthalocyanine (MnPc) molecules on Fe-supported Pb islands, a Kondo system is devised which is exchange coupled to a magnetic substrate via conduction electrons in Pb, inducing spin splitting of the Kondo resonance. The spin-polarized nature of the split Kondo resonance and a spin filter effect induced by spin-flip inelastic electron tunneling are revealed by spin-polarized scanning tunneling microscopy and spectroscopy.
authors.affiliation: Institute of Applied Physics, Hamburg University, Hamburg, Germany. yfu@physnet.uni-hamburg.de
authors.forename: Ying-Shuang
authors.initials: YS
authors.lastname: Fu
authors.forename: Qi-Kun
authors.initials: QK
authors.lastname: Xue
authors.forename: Roland
authors.initials: R
authors.lastname: Wiesendanger