TY - JOUR AU - Esat, Taner AU - Friedrich, Rico AU - Matthes, Frank AU - Caciuc, Vasile AU - Atodiresei, Nicolae AU - Blügel, Stefan AU - Bürgler, Daniel E. AU - Tautz, F. S. AU - Schneider, Claus M. TI - Quantum interference effects in molecular spin hybrids JO - Physical review / B VL - 95 IS - 9 SN - 2469-9950 CY - Woodbury, NY PB - Inst. M1 - FZJ-2017-02199 SP - 094409 PY - 2017 AB - We have studied by means of low-temperature scanning tunneling microscopy (STM) and spectroscopy (STS) single molecular spin hybrids formed upon chemisorbing a polycyclic aromatic, threefold symmetric hydrocarbon molecule on Co(111) nanoislands. The spin-dependent hybridization between the Co d states and the π orbitals of the molecule leads to a spin-imbalanced electronic structure of the chemisorbed organic molecule. Spin-sensitive measurements reveal that the spin polarization shows intramolecular variations among the different aromatic rings in spite of the highly symmetric adsorption geometry promoted by symmetry matching of the threefold symmetric molecule and the sixfold symmetric Co(111) lattice. Hence the varying degree of spin polarization on the organic molecule does not stem from a different hybridization of the aromatic rings with the Co atoms, but is proposed to be a consequence of the superposition of the spin polarization of the molecule and the spatially modulated spin polarization of the spin-dependent quantum interference pattern of the Co(111) surface state. LB - PUB:(DE-HGF)16 UR - <Go to ISI:>//WOS:000395996700001 DO - DOI:10.1103/PhysRevB.95.094409 UR - https://juser.fz-juelich.de/record/828231 ER -