Spin-Dependent Molecule Symmetry at a Pentacene-Co Spinterface
Journal
Acs Nano
Journal Volume
9
Pages
7027-7032
Date Issued
2015
Author(s)
Chu, Y. H. et al.
Abstract
Incorporating spin-polarized scanning tunneling microscopy (SP-STM) measurements and first-principles calculations, we resolve spin-polarized states and consequent features in a pentacene(PEN)-Co hybrid system. Symmetry reduction of PEN clarifies the PEN adsorption site and the Co stacking methods. Near the Fermi energy, the molecular symmetry is spin-dependently recovered and an inversion of spin-polarization in PEN with respect to Co is observed. The experimental findings and calculation results are interpreted by a pz-d hybridization model, in which spin-dependent bonding-antibonding splitting of molecular orbitals happens at metal-organic spinterfaces.
Type
journal article