1 research outputs found
High Spin Polarization at Ferromagnetic Metal–Organic Interfaces: A Generic Property
A high
spin polarization of states around the Fermi level, <i>E</i><sub>F</sub>, at room temperature has been measured in
the past at the interface between a few molecular candidates and the
ferromagnetic metal Co. Is this promising property for spintronics
limited to these candidates? Previous reports suggested that certain
conditions, such as strong ferromagnetism, i.e., a fully occupied
spin-up d band of the ferromagnet, or the presence of π bonds
on the molecule, i.e., molecular conjugation, needed to be met. What
rules govern the presence of this property? We have performed spin-resolved
photoemission spectroscopy measurements on a variety of such interfaces.
We find that this property is robust against changes to the molecule
and ferromagnetic metal’s electronic properties, including
the aforementioned conditions. This affirms the generality of highly
spin-polarized states at the interface between a ferromagnetic metal
and a molecule and augurs bright prospects toward integrating these
interfaces within organic spintronic devices